This doesn't make any sense at all. Peter Harrold wasn't used day 1 of the season in 2011-12. Indeed, he wasn't even on the roster until near the end of the season. Same with Stephen Gionta, who won a spot and then didn't lose it when Jacob Josefson came back.
Lou talks about it all the time, you need more than 20 guys if you're going to be doing anything. I don't like Josefson sitting, but if he does it a little longer they can sneak him down to the AHL for a conditioning stint if they want.
Gionta literally got a spot by luck, and then got hot so no he didn't lose his spot but it wasn't any great stroke of genius that got him in the lineup either. They were running the goon squad and other crappy forwards out there and finally found something to stick to the wall. Harrold likewise got in the lineup when Larsson got hurt and played well enough to get a spot down the stretch, while Larsson struggled after he came back. They both got in the lineup out of neccesity.
Yes you need more than 20 guys. You can easily rotate Olesz-Carter and Gionta-Josefson but we won't do that and it looks like the scratches are going to be Lokti-Josefson for the next game with both Carter and Olesz playing and two faceoff-retarded centers (Henrique and Gionta).