Assume you mean as the USUALLY do.
Sorry, couldn't help myself, like I haven't made boo boos before.
Teams have to learn how to win close games. It's not an automatic thing. Cowboys haven't learned that in the last 27 years. Obviously.
And it goes back to pre-Dak days, Tony, bless his heart, never learned it either. Like Tony, Dak has been trying to do it all himself in too many circumstances, just out-thinks himself sometimes also. Same with Bledsoe, Carter, and on and on.
But it could be worse, Detroit, et al have never even made 1 Super Bowl. Jets only 1 and that well over 50 years ago. Bills and Vikings had 4 shots each at a ring, couldn't "get 'er done". Bengals 0-3, if memory serves. Saints have 1 SB win (and appearance) in 56 years, took 42 years to even get there.
Will out beloved Cowboys every get back to knowing how to win? No guarantee they ever will, no guarantee they ever won't, either, of course. Pretty much that's why I watch, they're my team so I watch. And wait. And wait, and wait....