You can hate on Roman's passing attack all you want, and he does correctly get some heat for it, but Lamar simply leaves yards and points on the field too often on the rare occasion that push really comes to shove for them. Re-watching this game Lamar had some wide open guys behind the safeties that he simply never looked at. Two of them were the same play, same situation.
Lamar is a great athlete and not a bad passer but as a QB? Maybe it's how they developed him but right now he's very limited.