I thot he was going to be released when they signed Kelly, but Kelly really sucked in pass protection and Nijman out played him.
As far as what to do, first off, don't over react... Nijman survived when they game planned for a lot of runs and short passes... that doesn't put him anywhere near Bahk or Jenkins... if they're healthy, they're starting at LT period!
And while this says good things about Nijman, PFF said he still came away with a bad grade...
But Nijman is #3 LT and maybe try him as the #2 RT. So he can be the swing OT on both sides.
They don't seem to have any interest in him inside, at least not yet.