The only way to do both (yes, it's still possible) would be to amnesty Salmons (that gets us $7.5M in cap relief) and trade MT23 to somebody while getting back only about $4M. (Alternately, any other trade that clears us about $4M...you can imagine up the possibilities. For instance IT + Outlaw for a second round pick would possibly be close enough to do both.)
So it's not impossible, and given that we clearly went to Tyreke last night with serious intentions of keeping him...I'd just say that it's too early to panic. Especially when the deal is just the right size to fit Tyreke's NO offer sheet while amnestying Salmons and trading IT/Outlaw (a decent package, just for IT). Don't fret just yet.