Absolutely...
I am unsure about it right now and honestly, I am still really, really sad about this happening to "the Phoenix".. dude was a warrior and a true "Phoenix" this season (as you called him ironically) with the resurgence he was having... Anyways, losing Manu too (again we love him but he really should retire)... it's tough to tell.
I agree with you. It's tough to tell... without the Phoenix this season they wouldn't have even gotten out of the first round, let's be honest. So in that sense, yes Lamarcus and Pau both have disappointed. I don't think either could have done what Tony did for the team and was doing...
Players to watch right now for the rest of the postseason are Mills and Simmons... both are likely to get the heaviest share of scoring and creating minutes and both are FA. See, to even retain the level of team that they have they will have to spend anyways, so relying more on Murray seems like a real scenario.