My 2 cents...
I loved the #takenote hashtag. It announced that we were confident in our team. You don't shout "look at us" without confidence in yourselves. But you can't keep the same old thing, and be fresh. So I get why they wanted to come up with something new. The #TeamIsEverything tag is a good one. We will run the danger of people wanting to define this team as Rudy's Team or Donovan's Team and focus on those guys. This helps to reinforce the thinking that we play as a team, and will win more games when we play "Jazz basketball." It also helps brand the Jazz as a team that shares the ball and plays as a team. I think it will work as long as we win. Losing makes any hash tag suck.