Shaq from earlier this season would have helped us to be 2-0 at this point, in my opinion. He'd give us that inside presence the team is sorely lacking right now.
Without him, we rely far too much on outside shooting and we don't have the same kind of tough defense and slashers to make up for it (as we did last year).
I think it's fair to say, however, that Danny made a mistake in expecting that Shaq would be healthy and productive during the playoffs in the same way he was at the beginning of the season. Earlier in the season when Shaq was giving us 12 points and 5 rebounds a night, this was the best team in the league. Without him, our starting lineup just isn't talented enough anymore to cut it against teams with the ability to drive the lane, draw contact, and score inside. But Danny should have known that a 39 year old 300 lb center would most likely not be able to give us that kind of production after a 82 game season.