I like the way you think.However, the Jem'Hadar are nothing without the Vorta
However, don't say that out loud in front of your Jems. They are sensitive and easily hurt.
Okay back on topic - Jems aren't stupid by any stretch of the imagination. They just have very simple and straightforward goals in life.
Problem: The ENT augments were true warriors. Khan was so full of revenge (and something else) that it interfered w/his planning. Spock said, captain he exhibits 2 DI-mensional thinking.
The ENT augments kicked Klingon, human, prolly suliban, romulan, and cardassian ass too. IF the ENT Augments are spot on, then it would be a duel to the death w/the Jem Hadar.
Personally, an ENT Augment would F-up Worf some kinda bad and Worf battled Jem after Jem and defeated most to all. How Worf would have faired against an ENT Augment is up in the air, but I doubt if he'd win.
The Jem Hadar are of one mind, winning. So that lies in their advantage over anyone.