I have no idea why this hasn't been posted in here yet, since it answers the question everyone seems to have "omg wth is he thinking?????????"
So not only is he trying to do what people have been screaming at him to do - let the lines try to gel - it's pretty obvious his biggest priority is to do that with the Schenn/Lecav/Simmonds line. Considering the talent wasted by not finding a way to get a minimum of 2 of those 3 players going, it's really not a terrible idea. All season long, I've thought the best option (sadly) was to let those 3 keep hammering it out in practice until something works, like we saw with Hartnell/Briere/Leino. The assets are too valuable to stick one on the 4th and let the other slide up and down all season.
Read and Umberger are both terrible ideas, imo. I hope Bellemare gets his shot after 1 or 2 games.