Do Holt and Mejia warrant B+? And what about Familia he seems like a step behind those two maybe a B-? I would have them ranked right now like this let me know what you think. (What I expect their grade to be at the end of the season is in parentheses)

Martinez A-/B+ (A-)
Holt B+ (A-/B+)
Mejia B (B)
Flores B (B, I never thought he should have been B+ preseason)
Tejada B- (B-, Great glove but not fast enough to leadoff, maybe a solid #2 or a good #8 hitter)
Davis B- (B)
Familia B- (B-)
Thole B- (B-)
Niese B-/C+ (C+)
Havens C+/B- (B-)

This is a modified re-post of something i just posted on amazinavenue.

Tejada really likes like he is putting it together, although he’ll need to keep it up.

Tejada, at age 19, in AA (Tholeis 22):

.281/.381/.377 for an ops of .758. His wOBA is .358. His iso is below .100, barely. WAR is .9. He is supposedly quite good in the field. And, although allegedly not that fast, he is 6/7 stealing bases this year.

His babip is .338. Likely not sustainable.

Fernando martinez at age 19 had a lower wOBA of .346, and an ops of .772. More power. And a babip of .343, also high (but not that out of line with his norm either).

At 19, Josh Thole had a wOBA of .284 in rookie ball.

At 19, Reese Havens had a line of .259/.348/.368 in the SEC.

And Tejada really poured it on in May this year. .309/.374/.415, hitting his first homer and getting the iso above .100. Not only that, from a 10 bb 22 k line in April, he went to 9 bb and 9 k in May.

John gave him a c+ coming into this year, noting his youth and fact he played in St. Lucie in giving him a break, and mentioned the slick glove and ability to control the strike zone.

We are talking about a guy who is performing way above Havens or Thole at the same age (SEC is good, but not AA, and rookie ball is no comparison). And, in some ways, he is outperforming Fernando Martinez at the same age in the same league. I mean, a slick fielding shortstop witha higher wOBA at the same age, what would you call that?

Sure, let’s see some more. Maybe the bat gets knocked out of his hands at higher levels. He doesn’t have the power. Thole’s babip is .409, and his iso is "just" .129, not all that much above tejada’s May performance.

Which isn’t a knock on Thole in any way, but shows how good Tejada might be. Imagine his line at 22 years old, Thole’s age, at AA.

Josh Thole reminded me of former major leaguer Mark Johnson (who had exceptional plate discipline and nothing else). If Thole can keep it up however, he might be half as good as Darrin Fletcher?

which is not a knock on either player.

1. A- Martinez - ’nough said about this guy.
2. B+ Holt - has made good progress on SL and CU. Both are average now but SL is likely to be above average. What ranks him this high is command of FB sitting 93-94 with easy mechanics and ability to sustain stuff, handle workload.
3. B+ Mejia - his pure stuff is better than Holt. I think better than Kazmir at same age in this league. Best FB in system, 93-95, touching higher, with exceptional FB command. CU is really two-seam FB variation which he can cut and move in different directions. CB shows above average potential, but command of it is still spotty.
4. B Flores - very high ceiling, exceptional pitch recognition, swing and bat speed. Defensively will likely end up at 3B or 1B. Might be OK in RF, with a bit below average speed but good arm.
5. B- Brant Rustich - a bit under the radar, but two above average to plus pitches in FB/SL combo. Split-change was third potential plus pitch, but he may no longer be throwing it due to finger issues. He’s a bit overweight, and the body, mechanics, and injury concerns are what keep him from ranking higher. But has as much potential as Holt if healthy and developed as a SP. Late inning potential with FB/SL as reliever.
6. B- Ike Davis - the Mets have done a good job correcting the mechanical flaws in Davis’s swing. The approach the Mets teach emphasizes pure hitting, getting on base, and and hitting line drives, similar to Murphy/Thole. As a result Davis will come to the majors as a Lyle Overbay type. The 40-HR potential suggested by scoutingbook is a gross exaggeration, but the 15-20 suggested by Matt Eddy may be too pessimistic for his peak. He has much more raw power than a Dan Murphy. As in add at least 10 to what you think Murphy is capable of for his ceiling.
7. B- Jon Niese - was clearly over rated entering the season but is now maybe getting under rated a bit. Apparently the Mets made some alterations in ST to his change up and his FB grip that he has been working on in AAA. He’ll struggle for a bit to get the new release points right. Still a good #4 LHSP type.
8. B- Reese Havens - some seem to have doubts about his defense, but from what I’ve seen he should fit nicely at 2B, if his hands are soft enough. Range is poor for SS but not bad for 2B. 10 errors in 22 games in April was ugly, but 4 in 22 games in May an improvement. A lot were throws or rushing to throw. I think the hands are better than his first pro month in the field suggests.
9. C+ Kirk Nieuwenhuis - still a bit of a sleeper, but a solid enough defender in CF, good size & athleticism, nice swing, and showing some pop. If the power keeps up, and he is able to bring the average up a bit, there is Hunter Pence potential here. Tools are Hunter Pence or Ryan Church level, OK for CF, could be plus for a corner.
10. C+ Josh Thole - I know he’s impressing in AA, but keep in mind guys with little pop aren’t going to draw as many walks vs. MLB pitching. If Murphy is a potential .780 OPS type, you can expect Thole at best to be more of a .740-.760 OPS type, between his less natural power and the rigors of catching. That’s not bad for a catcher, but his defense is also in doubt. He showed some good potential aside from a below average arm when I saw him last year, and I’ve seen nothing but praise for the progress he’s made since then. But I still suspect he’s more of a good platoon guy than a starter.
11. C+ Ruben Tejada - his small size and frame still raise some doubts about his ceiling. But the all around skills, both defensive skills in the field, and patience and contact ability at the plate, are very impressive for his age. Even if he develops more doubles power though, his ceiling might still be a Clint Barmes type. His ability to draw walks is intriguing though. Clint Barmes would a pretty good MLB SS if he could post a .340 OBP (as opposed to his usual .310).
12. C+ Dillon Gee - a back end SP or bullpen arm, but despite average velocity, his outstanding command and feel continue to get results. He’s 5th in th IL this season with 12.6% swinging strikes, behind only David Hernandez (16.2%), Kris Medlin (14.2%), Tommy Hanson (13.7%) and Clay Buchholz (13.0%). His velocity is average, but his “stuff” is better than people think.
13. C+ Jefry Marte - you could rank him higher if you want to put more emphasis on ceiling.
14. C+ Scott Moviel - out the first half of the season due to injury, he should be back in action very soon.
15. C+ Francisco Pena - has been very impressive this season defensively. Has patience and power, but the numbers aren’t there yet. Give him time.
16. C+ Nick Carr - his FB/SL combo isn’t too far behind Rustich out of the pen. He has been much improved this year, sitting mid 90’s with much more consistent mechanics and command