Lacrosse players at my school would either get clued in they were in the plans, or they'd pledge a fraternity fall soph year. Going Greek got the UVa coaches ruffled so pledging to a house was pretty much a white flag on continuing lacrosse past second year. I'd guesstimate about 1/3rd of the lacrosse players did this. The ones who didn't stayed with it and were usually the ones playing. I noticed the lacrosse team was the one with by far the most attrition of the sports where I knew athletes.