Norway striker Carew told the Birmingham Mail: "I couldn't blame him if he went.
"He's been here for a long time and he's been loyal.
"He's a fantastic person and a fantastic football player and I really admire and respect him.
"I will always understand his choice. If he chooses to stay it will be really good for the team and I will be happy with that.
"If he chooses to leave I think everybody should respect that and wish him good luck because he's been a great player for the club."