Swagger has nothing to do with winning, nor does fans screaming in the stands. The mind and execution is all that matters. If you or your team needs fans in the seats to win games, then they are playing for the wrong reason, and will not be successful.
I wrestled all my life. In freestyle, most times wrestling up to find competition, as I was very small, I would sit at the mat while the other guy strutted around looking at me showing his muscle. While I had no muscle, and was probably 10 pounds plus lighter, I had no swagger. It was a blast, my Dad would laugh. He was never loud, just clapped, and told me what he felt after my match. Didn't matter, because I couldn't hear anyone when I wrestled anyway, I was engrossed in the mental part of the game, the zone. I wrestled for me. I could blame nobody, or nothing but myself if I lost.
So here would be this bigger guy, strutting out to center mat smiling, and me the little weakling, sheepishly walking out, tripping on purpose at times. The match was already won by me after the planned trip. Maybe a minute later, I would be the one smiling, hand raised, as they guy with the swagger just got beat by what he thought was a lesser opponent. I had the execution, talent, and mental game. I did not need swagger. Did lose the National Championship that year, so yes I was good. Swagger wouldn't have helped, he was just better than me that day.
Swagger to me is a coverup, of an insecurity, show your talent on the field or mat. Amazing how many college football players didn't have that swagger, after a 125 pound weakling would wrestle them, kicking their ass in front of their peers. What did I have to lose. Nothing. Win, and I get a free pass into the bar they were bouncers at, as I was not of legal age to drink yet. One guy, a cocky freshman football player, even came to my room the next day after I made him tap out a few times, begging me not to tell anyone. Wasn't my game to tell anyone. Later on he thanked me for the lesson.
Have all the Swagger you want, it doesn't make you better, I will take motivation. Every player on a team has something that motivates them, everyone is different. The difference between a good coach and an exceptional coach is the exceptional coach knows what motivates each individual separately from the rest. If he can individually motivate then you have a team with synergy
Now I am 210 pounds and could use some Swagger, as the talent is gone.