A 6-foot-3, 190-pound guard, who plays with the New England Playaz on the summer circuit, recently decided that he will do a fifth year of high school in order to develop his game further.
"I'm a 100-percent that I'm going to do a prep year," Carroll said. "I thought I wasn't 100-percent last summer and I want to get another summer and another year of high school in. Physically, body wise and game wise [it'll be beneficial]."
"Michigan stays in contact," he said. "Coach [Bob] McKillop called me a couple of weeks ago and said that he was interested and that he wanted to come up and see me play sometime soon. Washington State called me this fall and are going to come see me play."
"I'm trying to keep a couple of Ivy schools as my back up because you can't really go wrong with an Ivy education as a back up, Carroll continued.
Even with the attention he's received thus far, Carroll feels like his recruitment has been a bit strange.
"It's really confusing to be honest," Carroll said. "The lower schools kind of think I'm too good for them and the higher schools don't think I'm good enough. So I feel like I'm caught in between."
A few months ago, Carroll spent a weekend in Ann Arbor (Mich.) to see Michigan's campus and check out John Beilein's program. That's his only visit to date.
"I thought it was very impressive," Carroll said. "Everything about it was very impressive, especially coach Beilein."