I guess Keogh could have tried a more direct approach with rescuing Jake, Nog, Ben and Quark: swooping in with shields down, transporting them all up, raising shields and warping out.
Not a good plan when you don't know what sort of firepower the enemy has, of course. A single battery of anti-starship disruptor cannon on the planet's surface would have made such dropping of shields a really poor idea. And once Keogh got a feel of the real firepower of the Jem'Hadar, it was too late to try the rescue swoop.
What would have worked better is a well-prepared swoop: send in reconnaissance units first (say, the runabouts the space station could provide) to clandestinely find out exactly where the four prisoners were being held, then fly in with massive firepower and do a crazy shields-down beam-up stunt before the enemy can say "Victory is Life!", then flee under the cover of the best shields and most powerful guns Starfleet has to offer.
But without the recce missions, Starfleet didn't even know it would be needing to flee. Keogh's orders probably were to make a show of force. Destroying at most two very small enemy starships and getting rammed by the third was not the kind of show Starfleet was thinking of, but they couldn't really have known better - they wouldn't have had a reason to plan for a desperate rescue swoop where the most important element would be to get out before the enemy snuffed the mighty Galaxy.
Timo Saloniemi