Spotting the ball after a fumble in a running clock situation

[FormerUmp]

Pittsburgh Steelers wide receiver Antonio Brown makes big catch, fumbles, Martavis Bryant recovers - NFL Videos

Brown fumbled between the 41 and the 40. Bryant recovered at the 30. The Steelers were running up to spike it, and I can only assume the officiating crew spaced out in their haste and spotted it at the 32 instead of where the fumble occurred inside of two minutes. Would there have been any way for then to fix it afterwards, or are they pretty much stuck once the next play is run? Could the replay official have buzzed down if he'd seen it prior to the next snap?

As officials, what kinds of scenarios do you run through your head before each play just to make sure you're fully aware of the game situation and as prepared for as many possibilities as possible? When I officiated baseball, I tried to think through what I would do if the ball was hit certain places, much the same way I did as a player. Do you have to remind yourself you're inside two minutes, etc?

I imagine this particular issue is less likely to occur below the NFL level, as the clock is stopped to spot the ball and set the chains, correct?