Monthly Cardinals prospect rankings: August

Our monthly subscriber-only, in-depth report on rising and falling St. Louis Cardinals prospects.

This is the August 2012 edition of CariocaCardinal's Monthly Top 40 Prospect List. I hope that this report will be the launching pad for discussion regarding St. Louis Cardinals prospects.

Each month, I present my top 20 prospects (updated through the end of the month), my next 20 prospects (not ranked but listed in alphabetical order), as well as whatever observations I feel are relevant at the moment.

This report reflects my opinions and not that of the entire The Cardinal Nation staff, so feel to address any comments or criticisms directly to me either through a premium message board post or via PM if you prefer.

Note: Players remain eligible for the list as long as they maintain their prospect status (less than 50 innings pitched or less than 130 plate appearances in the major leagues.)

On to the report!

Prospect Rankings

Behind each player's name in parentheses is where I ranked him last month. Another point of reference is the overall site Top 40 for 2012, compiled during the off-season.

The Top 20

#1 Oscar Taveras (1). Continues to excel and is starting to receive more national recognition as a top 10 prospect in baseball.

#2 Shelby Miller (2). Showed signs of his old self this past month. Hope he's not just teasing us.

#3 Carlos Martinez (4). Seems to be overcoming the durability knock (because of his size).

#4 Kolten Wong (3). Appears to have hit a wall. Is he tired or have Double-A pitchers found some weak spots?

#5 Matt Adams (5). What happened to the OF experiment? In any case, Adams continues to hit and hit and hit.

#6 Trevor Rosenthal (6). Not a real fair shot in his major league debut.

#7 Michael Wacha (7). I am more excited about this guy every day.

#8 Tyrell Jenkins (8). How long can his youth be used as an excuse for mediocre performance?

# 9 Anthony Garcia (10). Needs to make more contact as a 25% K rate won't cut it.

#10 James Ramsey (14). Solid OBP skills make him potential leadoff man playing CF. Will he reach that potential?

#11 Ryan Jackson (13). Solid, but I wonder if he has peaked.

#12 Seth Maness (18). Probably the prospect story of the year.

#13 Carson Kelly (20). Power potential seems to be enormous.

#14 Greg Garcia (21-40). Is he a product of a hitter's park in Springfield or the real deal?

#15 Stephen Piscotty (19). Doubles power mostly so far. Can that turn in to home run power?

#16 Eduardo Sanchez (9). Injured? Out of whack? Washed up? I think the potential is still there.

#17 John Gast (15). Can he be a big league starter or he is merely a potential LOOGY?

#18 Adron Chambers (21-40). A big month in July brings him back into the top 20.

#19 Breyvic Valera (21-40). Hitting over .320 while young for his league.

#20 Jordan Swagerty (18). Word is that he is throwing a baseball already in his return from Tommy John surgery.

21 through 40 are in alphabetical order

Keith Butler (21-40). Not a great month; may be tiring.

Richard Castillo (21-40). Great stats but where does he fit among all the higher-profile starters in the system?

Maikel Cleto (21-40). Staying on this list based on raw stuff as his results are certainly not good.

Jermaine Curtis (NR). A .505 OBP for the month will get you back on the list.

Brandon Dickson (#20). Mr. Consistency.

Eric Fornataro (21-40). Relief seems to be his ticket to the majors.

Sam Freeman (new). Pitching much better since returning to Memphis.

Scott Gorgen (21-40). I expect him to excel as a reliever.

Mark Hamilton (21-40). After a slow start, he continues to hit.

Dean Kiekhefer (21-40). A future LOOGY - or does he have closer potential?

Tyler Lyons (new). Excellent K:BB ratio. Home runs allowed is the only blemish right now.

C.J. McElroy (21-40). Off to hot start in Rookie ball.

Mike O'Neill (new). OBP is off the chart.

Jonathan Rodriguez (21-40). On the shelf due to injury.

Starlin Rodriguez (21-40). Showing more power late in the year.

Kevin Siegrist (21-40). Has mastered high-A ball but yet to prove himself at Double-A.

Cody Stanley (new). Hitting much better as of late.

Charlie Tilson (19). Being out all season due to injury has dropped him out of the top 20.

Colin Walsh (21-40). Anyone taking odds if they promote him this year?

Patrick Wisdom (NR). Picked up his game in July.

Dropped out this month

Joe Kelly (11). Graduated.

Zack Cox (12). Traded.

Steve Bean (21-40). Hasn't yet shown he can hit.

Tyler Rahmatulla (21-40). Early returns at high-A not promising.

Luis Mateo (21-40). Terrible month of July.

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