I can't resist a debate...
Reasons not to play Romo...
It's reasonable to think the 'Boys can handle the Rams w/o him; If this is a secure enough bet, then he can - at the very least - relax that pinkie for another week until the following week's tough contest against Tampa Bay.
Just because the Rams are awful doesn't mean Romo gets some kind of immunity from being hit and further injuring his finger. Can you imagine? He gets nailed by a Rams' DE which causes a clean break and requires surgery? What would we think? That sure wasn't worth it, especially because the same game result would have been accomplished if Jason Garrett injected himself back onto the field in Romo's stead.
Reasons to Play Romo...
Intangibles. This could be a great source of inspiration to a team that has played without it for 3 consecutive weeks.
Romo - in a leadership role - can emit the tough, motivated, winner's mentality that this team has lacked to a great degree.
If things were to go well against St. Louis and absent any digression of Pinkie rehab, this would be a much needed pendant for overcoming some adversity - in light of a poor 3 weeks of play, the lengthy list of injuries, and the accruing sums of locker room distractions.
Conclusion: I still think Romo should sit out for the Rams game. Start Johnson, but keep Romo on stand-by in case desperate circumstances call for him. Romo can still make a valiant return the following week against a very tough/gritty Tampa Bay team.
By that time, his pinkie should be rehabed twice as much as it will be this weekend - assuming, of course, that rehabing a finger is a steady/constant process. But, at the same time, if Johnson performs well enough against St. Louis, maybe the coaches will be convinced that it's worth a shot to start him again against TB with the same conditions on the sideline regarding Romo. By that time, however, the opportunity to gain those intangible effects of inspiration/motivation/mental toughness as a result of an ever valiant return of the great Tony Romo may diminish.
This is a lot of subjective analyzing, I know, but it's still fun to debate. What do you think?