What the game taught me about team building: A well rounded Team can bring you that far. But to get to the promised land,your coach needs to accept lessons learned and stay calm.
I still can't figure why Shanahan didn't run the damn Ball 3 times before and after 2 min warning....a 6 yd run on 1st and 10. Nice! Then a rollout pass to a route on the line of scrimmage?! C'mon! And to make it worse, another pass play on 3rd and 4. All that while KC was blitzing the hell out of vegas all game....that was just poor game and clock management. Run the ball at least on 3rd and 4 after the 2 min warning. If you don't get the 1st....well, at least it leaves KC with only 1 timeout. It would have been a different drive for KC then....Still mad about those decisions.
So, Roster building is important. But it's only one half on your way to championship!
My 2 cents.