You mean a hungry guy like Jakob Vrana?
The only way this makes an ounce of sense is if Trotz understands that the Blue Jackets are a top heavy team and he's planning on using the Backstrom line to shut down the Panarin-PLD-Atkinson line. If that's the case I can see what he's doing. The 3rd line was terrific and maybe giving Vrana more favorable matchups (3rd pairing and 3rd/4th liners) will allow him to shine. If it's a reward for Stephenson and a demotion for Vrana then it's garbage.
Ding ding ding, we have a winner!!