Frolik, in particular, had goals in three straight prior to Saturday's loss to the Carolina Hurricanes, and has really turned a corner with a variety of linemates.
Rieder, though, has been a constant, with the 26-year-old contributing three helpers in his five games.
As a pair, they've driven the play offensively with a 54.35% shot share, a 57.28% split of the even-strength scoring chances, and have done so under heavy defensive responsibility.
The addition to the Bennett - a fast, physical and equally pugnacious winger - brings another new wrinkle to this feisty, fourth-line set.
It's a luxury, of sorts, for interim head coach Geoff Ward as he juggles a roster with three spare forwards - one (Austin Czarnik) will soon be activated off LTIR, as well.
Depth is good.
So, too, is internal competition as it pushes each individual to be better and stand out in a crowded locker-room.
"We told him to play to his strengths," Ward said of Bennett. "Simple is better right now. Just come in, play simple, play hard, play in straight lines, be physical, chip in offensively when you can, and be responsible away from the puck.
"Internal competition is good. It makes guys push a little harder. It's a motivator, for sure. But at the end of the day, we all understand that we're on the same team and we want the best for our team that possibly can get. Everyone involved in that room is committed to that, accountable to that. We're on the same page together.
"We'll put the best lineup we feel that we have to put on the ice in order to feel successful. We'll move ahead as a team, but the internal competition is certainly good.
"It drives guys to be better."