I wouldn't trust a rookie goaltender to be the Leafs starter, and what if Gustavsson is still having heart problems, confidence issues, and still plays like shit? Who do we got then? Rynnas? Playing mainly rookie goaltenders hasn't worked out well for the Islanders.
And what if Bryzgalov doesn't decide to sign with Phoenix, because the teams future is still uncertain? Bryzgalov can bring experience in net, and be a good mentor to Reimer, because he's actually good. I wouldn't mind Tomas Vokoun either.