He is not bragging.
He and Emmitt are cut from a different cloth.
Basically, they are stating we are going to dominate today because if we do not; our post season would be cut short.
And if they did not and lost; Jimmy would have ripped into them and the rest or the team.
And the 90s Cowboys did indeed dominate under Jimmy Johnson.
I watched all those game. I'm aware of all their accolades. And they won not because a couple stars showed up, but instead because they had a deep roster of talent, a first ballot Hall of Fame QB, and a coaching staff that spawned a number of future head coaches at both the college and pro level. If Michael wants to pat himself on the back and think it's because he and Emmitt chest bumped in the tunnel, he can keep patting himself on the back.
The Pats won for DECADES because they rolled out rosters of committed, motivated players - many of which were somewhat unknown when they were forced into the spotlight. Sprinkle in a dab of cheating and you get a lot more rings than Irvin's ever seen.
I'm fine with him wanting Dak to be Aikman, Zeke to be Emmitt, and Lamb/Cooper to be Irvin, but to diminish the importance of the rest of the roster (especially in the salary cap era) is just stupid.