John Sickels runs a very good SBNation blog called MinorLeagueBall.com.  Today he wrote up a profile of Randy Wells which you can check out here: Link

You should go over and give a click to John's website but I'll give you a brief preview.

Randy Wells Profile

Randy Wells was drafted by the Cubs in 2002, a 38th round pick from Southwestern Illinois Community College. Originally a catcher, he converted to pitching late in 2003, then posted a 4.43 ERA with a 121/40 K/BB in 108 innings for Class A Lansing in 2004. He had a decent fastball and usually threw strikes, but needed refinement with his secondary pitches, rating as a Grade C prospect at that point and not making the '05 book.

He took a big step forward in 2005, going 10-2, 2.74 with a 106/22 K/BB ratio in 99 innings for Daytona in the Florida State League, allowing 93 hits. His velocity dipped a bit into the mid-to-upper-80s, but his curveball and changeup improved, and his control was very good. I gave him a Grade C in the 2006 book, noting that he didn't receive much attention but that he could end up as a "back end of the pitching staff guy" if he continued to progress.

.......continued for four or five more paragraphs.  I found it very interesting and more about Wells than you might even want to know, very good info.