Summary: Withey has continued to blossom in his senior year at Kansas, developing into one of the best rim protectors in college basketball. Due to a limited offensive game, I am not sure that he is anything more than a career backup in the NBA but size is always needed at the next level, and his ability to block shots could earn him late-lottery looks.
Player Comparison: Omer Asik.
Lacking a ton of mobility or athleticism, Asik has developed into a double-double NBA big man because of his size and activity on the inside. While it seems highly unlikely that Withey will ever put together a season like Asik has this year in Houston, the Jayhawks senior could be a very solid reserve like Asik was last year in Chicago.
I really don't understand why you keep bashing the 49ers contracts. You have to overpay for guys when you have one of the worst rosters in the NFL. Beyond that, they have nearly $70 mill in cap space even after free agency, so what's the big deal if they overspend?