Brad Underwood was 89-14 and 53-1 in conference at SFA. If you really think Cuonzo or Frank Martin has had better long term success than that, then I'll just stop that part of the conversation right now because we simply won't agree. It's a lower conference for sure at SFA, but those results are VERY impressive regardless of conference. Especially considering he had more NCAAT appearances at SFA in 3 years than Frank Martin has at sCAR in 4 (3 to 0), and more NCAAT appearances (3 to 2) and as many NCAAT wins (2 to 2, first four doesn't count) as Cuonzo has in his entire career.
I can see the logic on Rick Barnes' age, but that's typically why he's not included in our lists anyway IMO.
I personally am not a big Scott Drew fan, putting him on the same tier with Gregg and Tony who have had rock solid consistency is where I took some issue.