It's the beginning of May, so I thought it would be a good time to evaluate my 2015 breakthrough prospect candidates based on their first weeks this year. Here I highlight the position players and will focus on the pitchers tomorrow.

Lewin Diaz and Jack Barrie have not started playing yet this season.

Jorge (JJ) Fernandez (CDR) was injured a few week ago and is just returning. Statistics so far: 44 PA, .220/.273/.341, three doubles, one triple, three walks, 10 strikeouts

Levi Michael (CHA) is really heating up. Statistics so far: 67 PA, .246/.353/.509, three doubles, three triples, two homers, seven walks, 12 strikeouts, three steals, and two times caught stealing

Tanner English (CDR) has moved into the leadoff spot. Statistics so far: 82 PA, .239/.337/.352, three doubles, one triple, one homer, 11 walks, 15 strikeouts, eight steals, and one time caught stealing

Zach Granite (CDR/FTM) has already been promoted to a new level. He has had some initial problems with A+ pitching, but the overall numbers are still good. Statistics so far: 98 PA, .318/.414/.400, five doubles, one triple, 13 walks, eight strikeouts, eight steals, and two times caught stealing

Zack Larson (CDR) has struggled at the plate. Statistics so far: 100 PA, .190/.314/.250, three doubles, one triple, 13 walks, 22 strikeouts, five steals, and one time caught stealing.

Tyler Kuresa (CDR) is not hitting well, at present. Statistics so far: 70 PA, .224/.243/.313. three doubles, one homer, two walks, and 17 strikeouts