Yeah, now that you mention that I do recall some threads, posts and trepidation sprinkled around the angst over the line combinations themselves.
Still when you have a young team and new combinations it makes sense to me anyways to let them work together to develop and establish a level you can work from. (Sabres Hockey?)
I suspect or rather hope when he feels they have that level across the lines and pairings then you can make adjustments to the model w/o upsetting the whole dynamic.
That I am hoping is playoff time ...