Really?
In 2010 the Cowboys drafted Dez Bryant. He was injured in training camp and didn't play a single down of preseason football. Nor did he participate in a single practice during training camp.
And yet, there he was in the first quarter of game #1, in the first drive. Right away Romo threw two consecutive sideline passes to him that netted a total of -1 yards. Why was he playing at that particular time? My theory is Jerry wanted to show off his new toy.
My point is that Jerry isn't really a true GM because he doesn't think like a true GM. A part of his mentality, the "owner side", is going to want to involve Trey Lance, somehow, this season. I don't mean he will start, but it could involve designed plays. Successful results of those plays could be used as leverage in contract negotiations.
You are going to say that is crazy, the idea is pure fantasy. Well for pure fantasy, how about this quote from Jerry Jones?
"Emmit Smith is a luxury, not a necessity."
Jerry said that during Emmitt's contract negotiations in 1993. Emmitt sat out, the Cowboys lost their first two games, Emmitt came back, the Cowboys became the first team to go 0-2 and still win the Super Bowl and Emmitt was it's MVP.
If contract negotiations get ugly Jerry Jones will mention the name of Trey Lance. He shouldn't but he will.