So what you're going to play Conley and Donovan 48 mins a gameWinslow is a very good, versatile player. With Conley and Donovan, we don't need a backup PG/SG as we do a PF with the handling, passing, shooting and defending that Winslow can provide.
And yes, Favors is better than Oylynk, but I think Olynyk would fit very, very well. He's like a poor man's Favors on defense, same rebounding but with a 3 point shot.