The £35m move for Carroll is one of the moves that has attracted the most criticism, but Comolli is quick to defend the actions of the club.
He told the Daily Express: "If you want to talk about the Carroll deal, the situation was quite clear.
"The way we looked at it, we were selling two players - Fernando Torres and Ryan Babel - and we were bringing two in - Suarez and Carroll - and we were making a profit and the wage bill was coming down considerably as well.
"Chelsea kept bidding higher and higher for Torres. The difference between their first and final bid is double.
"They [FSG] asked me what the risks were and I said if things don't go well you'll lose something on Andy, but it is difficult to measure whether you will make money if things go well because Liverpool aren't a selling club and he could be here for the next 10 years."