I mean Wales kinda do select overseas players - obviously with a big caveat in the cap number, but still had guys like Reffell, Rowlands and Jenkins in their squad, how many did they miss out on? IFW?
England selecting from the prem means extending camp and extra rest periods - look at Scotland kicking up a stink because their Prem contingent had to go back to their clubs in the bye weeks
Imagine if we had to send Itoje and George, or whoever, back to France to play in the Top 14 during the breaks
I mean we already kinda saw it last season with Willis missing the opening round of the 6N because he'd only had 3 days in camp before the team was selected