What are those credentials? He coached for Marquette for 1 year and went back. Took another job for 1 year and went back. He's never recruited at a high major level. I'm pretty underwhelmed by that resume.
Totally fair, but most assistant coaches resumes aren't always impressive. We are discussing 1 of 3 names CW mentioned in the OP.
One of Berry's recruiting area was the Mid West specifically Minnesota and Wisconsin, I would assume Green has good contacts in those states (and Iowa obviously) and familiar with the recruits. In that aspect I could see him as good hire.
I'm not advocating for hiring Green but that could be a reason to put him a head of other options.
I do agree Prohm shouldn't hire him just to get AJ on campus, it is far more important the new hires style of play and have the strong recruiting ties to help Prohm in the future.