Okay man, you can mix-and-match as you'd like, but there's no question that they would add depth.
Insofar as you would have extra bodies in the AHL/ECHL, yes they would add "Depth". But if either of these players is anywhere near the NHL, your roster is in trouble.
The last time Cheech played in the
AHL he was slow enough to have trouble keeping up to the pace of play. I distinctly remember the Worcester posters noting that he was so slow that d-men who were skating backwards were able to keep up with him moving forward. And that was already like 4 years ago. He was an awful skater at his best and now injuries and time have robbed him of whatever meagre speed he ever had and he is almost certainly unplayable at the NHL level.
Meanwhile Setoguchi played a year for the Jets where his season highlight was flubbing that shootout attempt, then he managed a half-season in the Flames org 2 years ago and then an invite to the Leafs camp that never amounted to anything. You want to take a guy who wasn't even good enough to secure a place on a team that was all but admitting its intention to tank. A team that dressed Michael Grabner for 80 games and got 40 combined games out of Mark Arcobello and Rich Clune. If Setoguchi couldn't break in there, what chance would he have on a roster that has real depth on the wings?