The thing about Rodrigues, is that when he does manage to put something together, he's very very impressive. This will put pressure on Ivic to keep him on in the hopes that one moment of great play will overcome any bad performance up to that point.
But that said, I would agree - sub him out quick if he's not on fire. We also don't have many other wingers available on the bench - Mistakidis is the only one who regularly plays that role, and is in shape. Biseswar might be a risk to bring in, and Kitsiou can play as RW, but hasn't for months (and never regularly).