Agree with Darrin. Treats are for teaching the desired behaviors, or the commands you want them to obey later.
Use treats to associate a behavior with a word - the best example is sit - and start to create a habit where they sit when you use the word in expectation of something good - the treat. Then only give them the treat intermittently, which is the best enforcer of the habit, and then you can begin to wean them off treats altogether and expect compliance with just the command. If you are so inclined, you could then use the collar or other pressure to enforce the sit command that you have taught to fully habituate it, but only after you are sure you have taught it and your dog knows what you want when you give the command. And I wish I would have fully understood what I just said about 2 years ago.
Good luck with your pup.