Well, now that we know the Spurs gave De Colo the BAE, it's impossible to sign Lorbek. He'd have to take the minimum
Did the Spurs ever even offer Lorbek a contract this summer? Did he turn it down and the Spurs moved on? Or did Lorbek use the threat of the Spurs to land a big contract with Barcelona? I guess we'll never know.
Hopefully Lorbek has NBA-outs in his contract. I wouldn't close the door on him forever. He's a late bloomer and doesn't have a lot of wear and tear on his body so he could conceivably play at a high level for a while longer.