The 6-foot-3 Carroll was deciding between Harvard and Rutgers.
"It was kind of the whole situation,'' Carroll said. "Being in the Big East was king of alluring. I'm comfortable with coach Hill and got along with him great when I was there. I got along with (assistant) coach (Darren) Savino, and he's been recruiting me the whole time.''
Carroll, a pure shooter, said he also felt a connection to the current crop of players, including sophomores Mike Rosario and Greg Ecchinique.
Carroll said his dad, John, the former coach at Duquesne and the Boston Celtics, was a frequent visitor to practices at St. Anthony of Jersey City (where Rosario played) and St. Benedict's (where Echinique played).
"I got along with the guys on team really, really well when I was on my visit (to Rutgers),'' Carroll said. "I felt comfortable with everything about them.''
The biggest issue in the decision for Carroll came down to the Harvard education.
"It came down to I'm a basketball player first, so I wanted to do the Big East thing,'' Carroll said. "I was extremely impressed with the Harvard education, but decided to go with Rutgers.''