Coach Dana X. Bible was at Texas A&M from 1917 through 1928 (minus the year he took off to be a pilot in WWI), then coached at Nebraska, before coming to Texas. He won a Nat'l Championship at A&M in 1919, going undefeated and also not allowing his opponents to score a single point. He also won the SWC three times at Texas, so he was pretty successful at both schools. As far as the last 30-40 years of football at A&M being the most successful, I'd probably agree. One of the main reasons for that is that in 1965 they finally changed their policies and made Corps of Cadets membership voluntary (as well as allowing women), and at the same time became officially an integrated school. These changes affected the makeup of the football program, which suddenly had actual athletes that didn't have to be in the Corps. Obviously that changed the caliber of athlete, in general, that was went to A&M (with obvious prior exceptions like John David Crow, Jack Pardee, Gene Stallings, etc), and the program became more successful overall. You almost have to treat them as two distincts periods for A&M, IMO. For example, A&M and Texas have played 118 times in their history. The record is 37 wins (A&M), 76 wins (Texas), and 5 ties. Distinctly in Texas' favor. But if you just look at the record from about 1975 as A&M really started becoming competitive for the above reasons, it's quite a different picture. In that time-frame they've played 37 games - A&M has won 19 games, Texas has won 18.