TOS was a pretty nice dude, from my limited experience with him. He thought OU was going to be a quick stop on his ascension to a major job. His wife was not happy about the move, from what I remember, which explains his move to Bryant, where they kept a house.
I still get a chuckle out of his insistence that recruiting Minnesota was a good move, because there's only D-I school there. That sure worked out well.
Groce seems to be heads and tails better, a top-notch recruiter for sure. He'll be gone in a year or two. If he manages to upset Georgetown, he might be out of there in a month.