Keenum is not your problem, nor is the coaching considering the team as a whole.
Last game:
The "star" running back rushed for 48 of a team 59 yards rushing.
Penalties were again sadly laughable with Carolina committing 5 penalties for 35 yards while the Rams were flagged 10 times for 109 yards taken away.
Offensive line play was, well, less than impressive.
Rams offense had 339 yards vs just 244 for Carolina.
^^^ Keenum again passed for almost 300 yards. ^^^
The Rams kicker made 1 of 3 field goals while the opposing kicker made 2 of 3, which made up one of the differences in a 3 point loss.
My opinion is that the quarterback position is not the team problem. If the newly drafted quarterback could do better with what the team has to work with this year, it would be more than remarkable.