Galway hurling boss Micheál Donoghue feels rigidly deploying a sweeper system can make it difficult to adapt during games.
Wexford used Kevin Foley in their All-Ireland Hurling semi-final defeat to Tipperary over the weekend, where they let a five-point lead slip while also a man up.
Donoghue thinks it can be difficult to switch to a more attacking stance when setting up with a sweeper.
"For me, the biggest risk of playing a sweeper, and we [Galway] haven't really, is when the game is there, you have to decide at some stage you've got to go for it.
"Even if you're using it for a full season, or two seasons, or three seasons, if you're in a huge game like last Sunday, surely at a stage you go 'right, we have to push on'."