The Die is Cast

Doesn't twenty ships seem like a bit of a measly force to go and attack the Founders? I mean, okay it was a sneak attack that wasn't suppsed to fight its way to the home world or anything... but look at the fleets we see during the war, hundreds of ships strong or more. Even a pretty low level orbital defence system would be more than capable of handling only twenty ships, and the Founder's planet would certainly be likely to have one of those.

So Garak's machine stops Odo from shapeshifting. Then how is it that Odo is still able to move and speak? I always assumed that when Odo shapeshifts, he assumes the shape, colour and texture of whatever he is imitating on the outer surface, but remains liquid inside. Then when he moves, he is essentially using his shapeshifting ability to bend his arms, legs, etc. So shouldn't Garak's machine keep him statue-still? Or does the shapeshifting work some other way?