Signing De Rossi from Roma is like trying to sign Gerrard from Liverpool or Terry from Chelsea, we're attempting to buy an iconic player who is strongly associated with the club and was in their academy team. That means there is an added premium that we'd have to pay to pry him out of their hands. The opportunity to sign a player this good who can undoubtedly improve our team is very rare and if the club has to pay over the odds for such a player then they might do it. We've spent next to no money in the last two transfer windows anyway and with the revenue we've made from the sponsorships, CL football, and winning the league we must have the funds for a player like this even with FFP in mind.