I hope he didn't lose any strength. He often used that size to bully his opponents.
He might lose a little, and wont be able to hold off Bigger SF's and PF's. But with Morris,Yabu and Semi he shouldn't have to anymore, and can take on bigger PG's and SG's and the average SF's.
I've seen some video's of him playing this summer and he's light on his feet and shooting it well. Hopefully this translate to this season. Because it's a crap shoot for starting SG, not sure if Brown is ready for it, but it will be a good battle to see who wins it.