Donny,
I agre with you he shold make a couple changes during the song. Switching to a different brass section like the original Glem Miller version would work. Ot maybe a sax ensemble. Or just muted brass.

I think it's always good to listen to several renditions of the song...then do what trips your trigger!

I think the reason everyone has been OK with his performance is: That Brass sound is super!