In Marlin's first year, it took half the season for the players to finally buy into his system, and you saw what happened when they did (11-game winning streak to end the regular season, share of Sun Belt West title).
The Cajuns added seven newcomers going into his second year and appear to still be getting comfortable after injuries sidelined key players J.J. Thomas and Josh Brown for early stretches and the loss of Odayne Clarke resulted in a lack of inside depth. Inconsistent production from basically every player (especially the JC transfers) hasn't helped either.
Marlin has a track record of being successful in junior college and at Sam Houston. It would be smart to give him a chance to rebuild the program, which wasn't in great shape when he took the job. There's still a chance to win the West with as crazy as the division has been, although I believe the third year will be the key.