Truly Starters?

About a month through the season, let's go and check on the players from the Sally League that I thought could turn into at least major league starters (5.0 or higher):

8.0 (Superstars)
Angel Villalona: Currently at San Jose (A+). .307-.338-.467. 3 HR's, 11 RBI's. 75 AB's, 4 BB, 16 K.
David Price: Currently at Durham (AAA). 1-2, 3.71 in 4 starts. 17 IP, 14 H, 8 BB, 20 K. 64 % strikes.
7.0 (Multiple All-Stars, # 2 starters)
Jason Heyward (7.5): Currently at Myrtle Beach (A+). .279-.357-.508. 3 HR's, 10 RBI's. 61 AB's, 7 BB, 13 K.
Madison Bumgarner: Currently at San Jose (A+). 3-0, 1.40 in 4 starts. 19.1 IP, 17 H, 3 BB, 19 K.
6.0 (A Few All-Stars, Strong # 3 Starter)
Jesus Montero (6.5): Currently at Tampa (A+). .351-.400-.581. 4 HR's, 13 RBI's. 74 AB's, 6 BB, 12 K.
Mike Stanton (6.5): Currently at Jupiter (A+). .296-.390-.507. 4 HR's, 11 RBI's. 71 AB's, 10 BB, 22 K.
Felix Doubront (6.5): Currently at Portland (AA), skipped A+: 2-0, 3.14 in 3 starts. 14.1 IP, 9 H, 8 BB, 19 K. Groundballs to fly balls: 1.30
Wilkins De La Rossa: Currently at Tampa (A+). 1-0, 0.00 in 2 starts. 9 IP, 4 H, 3 BB, 10 K.
5.0 (Strong Major Leaguer Starters, Mid-Rotation starters)
Freddie Freeman (5.5): Currently at Myrtle Beach (A+). .253-.313-.480. 4 HR's, 15 RBI's. 75 AB's, 3 BB's, 11 K's.
Che-Hsuan Lin (5.5): Currently at Salem (A+). .151-.230-.189. 0 HR, 5 RBI's. 53 AB's, 5 BB, 15 K
Yamaico Navarro (5.5): Currently at Salem (A+). .286-.286-.571. 7 AB's, 0 BB, 1 K
Nick Noonan (5.5): Currently at San Jose (A+). .264-.345-.403. 2 HR's, 10 RBI's. 72 AB's, 8 BB, 21 K.
Charlie Culberson: Currently at Augusta (A), Repeating. .266-.322-.291. 0 HR's, 3 RBI's. 79 AB's, 6 BB, 26 K.
Michael Jones: Currently at Salem (A+). .333-.403-.400. 1 HR, 7 RBI's. 60 AB's, 6 BB, 8 K
Chris Nash: Currently at Lake County (A), Repeating. .203-.242-.220. 0 HR's, 8 RBI's. 59 AB's, 4 BB, 16 K
Thomas Neal: Currently at San Jose (A+). .362-.470-.652. 4 HR's, 15 RBI's. 69 AB's, 9 BB, 23 K
Andrew Walker: Currently at West Virginia (A), Repeating. .255-.397-.362. 0 HR, 4 RBI's. 47 AB's, 10 BB, 10 K.
Deunte Heath: Currently at Mississippi (AA). 1-0, 0.83 in 4 starts. 21.2 IP, 16 H, 13 BB, 17 K. 61 % strikes.
Joey Mahalic: Currently at Lake County (A), Repeating. 0-1, 1.29 in 3 starts. 14 IP, 8 H, 5 BB, 9 K. Groundballs to flyballs: 3.14
Duke Welker: Currently at West Virginia (A), Repeating. 0-2, 4.34 in 4 starts. 18.2 IP, 13 H, 10 BB, 9 K. Groundballs to flyballs: 2.00