I think it's pretty known how I feel about Hairston, so I'm hpoing he's the answer, but the size I just can't get over. Maybe it's because all the weight he's lost that my view of him physically has become skewed, but he looked like he was shorter than Mason.
I completely agree with Bogans being a Spurs signing. In fact, I'd be almost surprised if he wasn't signed. He's not all that athletic, and might just be a fresher not quite as physical Udoka, so he'd be useful, I'm just not sure he's who I'd go with. Although, unless they can get McGuire,(I know, I should be his agent

) Sefolosha, or someone similar through trade, the options are pretty limited.
Maybe, Carney? shoots the 3 and has the tools.
Joey Graham? great tools defensively but has completely devolved defensively toiling in that defensive-cesspool. (Again, not great options.