It's a term called "over-signing" and some college football programs are more willing to do it, than others...
Remember -- the NCAA limits FBS teams to 85 full scholarships on their football roster.
Here's a look at the last four signing classes (2016, 2017, 2018 and 2019) for the teams going into this year's College Football Playoff -- compared to Notre Dame, Alabama, Georgia, Michigan and USC.
I've also added in a comparison of total wins over the last three football seasons (including bowls / playoffs):
LSU:
- 2016: 27 -- 2nd ranked class
- 2017: 24 -- 7th ranked class
- 2018: 22 -- 15th ranked class
- 2019: 25 -- 5th ranked class
- Total / Avg: 98 signed -- 7.