I wouldn't be taking Crichton's money and giving it to Burton for the purpose of him playing centre. I'd take it to gamble on Burton providing more for the money to the team in the long run, probably by becoming our fullback. And I'm doing it with the hindsight of knowing Crichton's performances this season.Burton is benefiting from the exact same effect and Burton certainly has not looked like a better defender than Critta.
But at the end of the day people at the club get paid to make these calls, and they should be judged by them.