Watching Green Bay and Tampa Bay. Notably both quarterbacks (Aaron Rodgers and Tom Brady) were drafted by teams with successful quarterbacks: Brett Favre and Drew Bledsoe.
The list below demonstrates, to me, that Romo-Friendliness and Dak-Friendliness isn't the way to go. I'm OK with keeping Dak. But I also want to use the top 10 pick on a qb for competition. And rather than look at it as an insult to him, it actually will bring him to the next level, if he has that next level in him.
Observe:
1960s Green Bay Packers
When Bart Starr was drafted by the Packers, Tobin Rote was a Pro Bowl starter. Babe Parelli, a #4 overall draft pick, was on the bench. In the AFL after leaving the Packers, Rote went on to an MVP season and Parelli became an AFL All-Star multiple times. If Tobin Rote were the Cowboys QB today, Jerry would throw money at him.
1970s Steelers and Cowboys
When the Cowboys drafted Roger Staubach, they had Don Meredith and a year later drafted Craig Morton in the first round. Meredith retired when Roger returned from the Navy. Obviously Morton was no slouch. Two SB appearances, and outstanding stats in his two undisputed years as Cowboys starter. Staubach won his first Super Bowl from off the bench, then went back to the bench to start the next year. But Roger won out.
In 1969, the Steelers chose QB Terry Hanratty with the 30th overall pick (2nd round, in the 1st round now). So naturally, they did what Jerry would do: put all of their resources into Hanratty because their credibility was tied up in him. No, of course not. They used the 1970 No. 1 pick overall on Terry Bradshaw. And late round pick Joe Gilliam was the starter at the beginning of their first SB year. They churned.
1980s 49ers
Less of a case here. But Joe Montana did beat out journeyman Steve DeBerg, who wasn't bad and led the Chiefs to playoff berths later in his career. Of course, the Commanders rotated quarterbacks. But I wouldn't recommend that strategy.
1990s Cowboys
Troy Aikman. Steve Walsh.
And obviously Steve Young joined the Niners during the Montana years.
2000s/2010s Patriots
Drew Bledsoe went to the Pro Bowl in 1994, 1996, 1997. The Patriots drafted Tom Brady in 1998. Like Staubach, Brady won a Super Bowl and went back to the bench for a short time, IIRC.
Obviously QB competition didn't destroy these guy's tender egos. It brought the best out of them.