The triggers may be fine together, you'll just have to watch them. If they are equally aggressive, add the blueline first, being it is smaller. Make sure you have plenty of liverock, or other aquascaping to make sure each fish can establish a territory and have a place to relax. I'd be worried about the puffer though. A lot of times, triggers and puffers don't mix for one reason or another (especially with more aggressive triggers like yours.)
Bo