also, deadspin already proposed your option B in November:
So if the NFL really cares about its on-the-field product (this is not necessarily a given), it needs to create one or two special bonus roster spots for each team that are strictly for quarterbacks under the age of 30. You have your three active gameday passers, but you also get two bonus quarterbacks to stash who are not eligible (but are paid handsomely so that the NFLPA is cool with it). Then, the NFL sets up and funds a special QB farm (not run by Trent Dilfer!) somewhere warm and awesome, and you send your little project QBs there for a couple of years to learn mechanics and memorize sample playbooks and all that ****. This can be done off-site. The Bills didn’t have to develop Taylor for the past four years. The Ravens did that job for them.