I think the Rams were very comfortable with their starters and their back ups. Meaning if one went down then another could take their place... but 4 spots on the OL have had new players... I don't think anyone can be that prepared.
I too would have preferred OL but a deep threat was a need. And I think that is their drafting philosophy with higher picks. OL wasn't a need until an unprecedented rash of injuries this year. And if Creed was here and healthy, it would help but there are more spots on the OL too that need players.
Tutu would be perhaps make more of an impact with a running game... which would be helped by starting caliber OL... and a good RB.