About Hill's recruitment and ending up with Stanford and then transferring to BYU. You could probably find several by searching. This one has quotes from Hill that Harbaugh's leaving Stanford as well as the enrollment issue played a part in his transferring to BYU. Also says that Taysom had decided "Months earlier" to transfer to BYU before Heaps decided to leave BYU. So apparently, he knew while still on his mission that he was transferring to BYU.

Taysom has also said that BYU was heavily recruiting him all along, both before he decided on Stanford and after. So he had the open door at BYU and was readily welcomed when he decided to transfer.

http://www.deseretnews.com/article/765602215/BYU-football-Cardinal-commit-Taysom-Hill-happy-to-be-a-Cougar.html?pg=all