... is a pretty great show when it comes to conveying what it takes mentally to play the position of qb.
There are a dozen things a qb has to go through in the 25 seconds (or less) of his pre-snap reads.
College systems aren't as wordy or complex as nfl systems (notoriously) are, unless Bieniemy is your oc. But even if college qb is only 50% of the mental workload that nfl qb is, it still dwarfs every other position in sport.