Koufos is a fine player, if we're actually chasing him I can understand that. For the time being though there are productive bigs disappearing from the market on affordable deals while we're sitting on $11-12 million in cap space and looking at starting the season with Eric Moreland and Willie Cauley-Stein's combined 1 minute of NBA playing time as our entire frontcourt depth. Koufos would be a real nice addition but we haven't fared well so far with free agents other teams are interested in.
The good news is that between the Knicks signing Lopez and the Lakers trading for Hibbert, there aren't a lot of teams out there that want him and have the cap space.
Clippers might be able to arrange a S&T for him, and Portland might want him at center- but there aren't a lot of starting center openings right now and we can offer him a good deal.
EDIT: come to think about it- the Pacers now have cap space, and no starting center (or PF after West leaved) I think they could possibly be our major competition, though I haven't heard that they have expressed interest in him...