I would have to say Yzerman more so. Only because I do not think Holland would've drafted Mo at the #6. If he would've been drafting D, I see Holland still taking Broberg. If he was going forward, you would hope he would've gone with Zegras or Cozens, but he probably would've reached with Poulin or Holmstrom.
Although Raymond came out firing, I think he still needs more time to see if he can be a 30-40 goal scorer. Simon is a stud, hopefully he spends only one more season in GR and makes the team soon! I also hope that Kasper and Danielson make a splash sooner rather that later, because I do believe the days of The Wings drafting in the top 10 are over. So (even though we've had the worst lottery luck in NHL lottery history) we'll never get to draft that #1 or #2 generational player. BUT, that being said, injuries play a huge role in a team's success, and although I am ready to have them turn the corner, I wouldn't mind having a shot at Cole Eiserman.
So, IMO, Yzerman changed the direction with his surprising selection of Mo Seider and also dumping most of Holland's trash.