Evaluation of college players and their contributions that will be made at the pro level is not an exact science. Some good players slip through the cracks, and sometimes don't even end up being drafted.
I think the DITR is more of a guy who has more native skills related to the pro game than the college game, and scouts just don't see it. I've seen this happen at so many levels of sports, and so many coaches just don't see their own failure with it.
In baseball, I took a bunch of kids that nobody wanted for their Little League teams in a small city, and turned them into City Champs. It was all about find out what they could do, and letting them enjoy doing it. It wasn't me who made it happen, it was them.
You'd be amazed at how many coaches who'd sent these kids home, telling them they weren't good enough to play, who ended up eating their words. We lost our first 3 games, then ran the table winning the next 16, and swept the city championships. Since all my kids were the youngest ones as well, they were on the team the following year, and won all 16 games we played. When it came time for the playoffs, the other teams just handed the title to our kids. They'd been humiliated enough. To be honest, they deserved it. No kids should be dumped from a program.