Well thats just short sighted stupidity.
Having players that outperform contracts is great if you are planning to trade them later on to assets that fits your timeline. But giving a contract to someone like teague would be just dumb. He wouldnt only take minutes away from players we are gonna develope, he would start to decline when we are on a win now mode plus he would eat up cap space that could be used to improve the team when its smart
Teague's efficient and proven, 3:1 ast/to ratio last year, career high assists(on a brand new squad), he's a true triple threat. In general he's underrated, silent but deadly. He'd be a high-quality pickup. If they could land him and one of Gallinari or Otto Porter it'd be a bigtime infusion of vet talent thats equipped to do heavy-lifting.
With Fox and Mason on rookie deals there will be plenty of room to allocate $$$ to another PG. I don't see why they'd need to penny pinch or get some player who's markedly inferior for a third of the price. Teague is just a few years removed from being an All-Star..
I didn't say long-term deal either, if they want to pay him a decent amount for 1 year with a team option for the 2nd, that'd be ideal.
Look at it this way, he'd probably only cost what they paid Rudy Gay last season... It'd be a major upgrade.