I have no doubt that Grant wanted the job. He took a leave of absence at Forest Lake to be an assistant there. The rumor at the time (this was about 25 years ago) was that he thought Gags was going to retire and he'd get the job. I'm pretty sure that the "withdrawl" was to save face when he found out he wasn't going to get hired. I don't think he'd be a good recruiter. He's a naturally arrogant guy (yeah, a lot of coaches are) and his personality wouldn't play well with the kind of kids that would be going to SJU. He's also immensely unpopular amongst other high school coaches in the state and I wouldn't doubt that coaches would steer guys away from SJU on purpose just to stick it to Grant.
Not sure if this is what you are referring to, or something else, but Gags almost was San Diego St.'s coach. I think I remember he agreed to it or something with the AD and came back to SJU and had a change of heart.
Grant might've done OK there. SJU gets a lot of legacy players so any alum will hopefully continue that. I remember we had a DB a few years ago that turned down a walk on offer at the U and other scholarship offers to play at the U because his grandpa did. Think his name was Bobby Klint.