Perhaps he didn't want to be turned into another 6'9" 5.
Until Mac shows he will put more than one guy bigger than 6'5" on the floor at a time (and that guy has to play and guard the post), it is going to be difficult to get anyone of size who isn't looking to be a post to come here. It wouldn't completely shock me to see Bishop leave after this year if he doesn't see the floor outside of sharing time in the post. But, keep the lines of communication open. Stanford has not been good basketball wise since their NIT championship 5 years ago. 63-64 over that time, and Haase is 48-49 in his three seasons. Another season like his first three and Haase may be out. Of course, Murrell may not care so much about that. But in a couple of years and little maturing, he may realize Stanford isn't the end all be all, and he may rather come home to play in front of his parents and friends. If Mac starts playing with a true 4 again, perhaps he'd be more interested.