He is right in line with the highest-paid coordinators in all of college football. Pulling him away for a head coaching gig would take a lot of money. The schools that have the money to pay him won't do it right now. Fortunately for us, the negative bias against BYU greatly benefits us here.
Utah is the only immediate threat to poach him, and, in true Utah fashion, they just promised the job to somebody else and put themselves behind the 8 ball.