I'm frustrated, so this will be jumbled:

Too many fouls.  Some fair, some unfair.

Too little frontcourt depth.  Too much Shaq rolling over our defense.

Too little diversity on offense.  Too many perimeter guys who really struggled today because Cleveland contests every jump shot like all great defensive teams. 

Honestly, tonight proved this team is still too far away from the real contenders.  It's a nice team - a very good team, even - but we're not there yet.  That's okay, it's Game 4 of a long season, and there is a lot of change to go through.

Still, it's kind of frustrating how this game turned.  Fouls hurt, and bad calls hurt, but it shouldn't completely swing the entire momentum of the game like that.