NBL - Should a club beable to change imports mid-season?

Should a club beable to change imports mid-season?
my view is no, time and time again the Kings sack imports mid season
these imports make sacrafices to move to another country, most times bring their wife ad children with them, it's too easy for a club to sack an import
surely the focus should be at clubs making the right recruitment decisions, why should they be allowed to carry no risk with their selections, Brian is deemed to be the super-coach but time and time again he gets it wrong, why should he get a second bite at the cherry
you select your roster, that should be your roster for the season, whether your decisions are good or bad
my view is no, time and time again the Kings sack imports mid season
these imports make sacrafices to move to another country, most times bring their wife ad children with them, it's too easy for a club to sack an import
surely the focus should be at clubs making the right recruitment decisions, why should they be allowed to carry no risk with their selections, Brian is deemed to be the super-coach but time and time again he gets it wrong, why should he get a second bite at the cherry
you select your roster, that should be your roster for the season, whether your decisions are good or bad