In this age of early NBA entries, transfers and de-commits, I would like to see the NCAA try a 3-5 year test rule that allows schools to over sign by one player every other year.
I would see it working this way: Team signs, lets say 5 new players for 2018, which puts them at 14 on scholarship for that year assuming normal graduation and no early departures. If there are no departures, the team would be one over the 13 man limit and would have to redshirt (let’s call it a blackshirt) at least one of the 5 new players so that they would still only have 13 players eligible to play. The designated blackshirt player would not be allowed to play that year under any circumstances, once the school year starts with the team one man over the limit. If a team takes advantage of this rule, they would not be allowed to over sign the following year (so you can’t just keep stock piling talent). If you over sign to the 14 limit, but someone ends up leaving early resulting in a 13 man roster, then the team could over sign again the following year.