Obviously the answer to this is a big guy, and probably a guy who contributes on offense or else they wouldn't be in the league.
As long as Mark Madsen earns an NBA check, it is he who is least athletic.
Maddog is actually fairly athletic, or atleast decent.
Those guys aren't even in the league anymore.
Can't believe it took this long for someone to mention it. The guy isn't even Strong like guys like Araujo are.
And Ilgauskas is definitely the slowest.
And for young point gaurds, Marcus Williams has to be up there.