I like the idea of Robinson, Jennings would be superb, however, might be too pricy. I have concerns at backup LT as when Jackson was not available, the team really suffered and if Jackson cannot play, it also puts Stafford in jeapordy.
Not sure what the current plan is, maybe they feel David Quessenberry can fill in, but I remember him struggling when he played for the Vikings in that capacity. Keagan Trost might be able to provide that backup option as he has played all the positions along the OL, with the exception of Center, however, with more success at RT then LT.
If Trost can deliver, the Rams might only keep 8 OL with the obvious starting five then Dedich, Quessenberry & Trost, but I would feel much better if the Rams added someone like Cam Robinson come September Morn.