BOULDER — Shedeur Sanders is even more careful about his phone number than he is with passing windows. But of all the congratulatory texts the CU’s new QB 1 landed after piloting the Buffs to a 45-42 win at then-No. 17 TCU, one stood out. “Don’t be satisfied,” it read. The sender? Tom Brady. “It (was) cool,” the CU quarterback said Tuesday when asked about getting a shout from the NFL icon, who retired earlier this year.