It would be possible but since both are natural RD-men, not likely.
Here's a rarity. The Comets would have 4 RD in Nemec, Mukhamadullin, Walsh, and Russo. No more having to employ Lefties on the right side.
Vukojevic, Bahl, Okhotiuk, Groleau are lefties. 3 of these 4 are likely to at least start the season in Utica. If perchance Ok and Bahl were to both be in NJ leaving Groleau as the 3rd LD, you might get to see the Mukh/Nemec pairing as I don't see any of the 4 righties scratched while Groleau is in the lineup.
In hindsight I don't see any of those 4 righties scratched period, so one of them will be on the left side every night. Your Nemec/Mukh pairing might just happen.