The vision he helped support for OSU cannot be overstated, imo.
I remember an interview that President Halligan gave after he'd left OSU. He talked about Bill Powers (UT President then) telling him flatly "you've either got to do something about that stadium, or else..." (paraphrasing).
Coach Holder would later say that we'd have been staring at Conference USA without the stadium renovation.
I thought both seemed extreme at the time, but man was I wrong. The vision of Holder & others, & the support of Boone were absolutely necessary & the timing couldn't have been better. The long-neglected facilities of then are now points of pride with virtually every sport, & that was a pipe dream at OSU for decades.
Between the athletics & academic donations, there's literally no telling how much giving he brought about at OSU.