The former Manchester United boss, who was hosting the meeting of coaches in Nyon, says there were promising discussions about a change to discipline in football.
In sports including hockey, rugby league and rugby union, players are ordered to spend time off the field for offenses that are not deemed serious enough to warrant them being dismissed for the entirety of the match.
UEFA coaching ambassador Ferguson would love to stamp out simulation, which he described as a "disease" in football.
"We couldn't get to an agreement about it because it's such a controversial decision to change from what we know to a sin bin, but there was a good discussion about it," Ferguson said. "From UEFA's point of view, it's something that they're looking at. It has some merits - in particular simulation by a player which has become a disease within the game."
Ferguson also offered his view on the extravagant spending from English clubs in the recently completed transfer window.
Premier League sides splashed the cash, investing more than 1 billion euros on signing players, with Ferguson's old club the top-spending outfit in Europe.
In a bid to return to former glories, United spent an estimated €200 million on bringing in Angel Di Maria, Ander Herrera, Luke Shaw, Marcos Rojo, Daley Blind and Radamel Falcao.
Ferguson was a vocal critic of Manchester City's spending sprees in the past but declined to criticize his former club.
"My own personal opinion is that it's never going to change," he added. "The world's progressing all the time, with transfer fees keeping up with it.
"I don't know if there's an end to it, fortunately I'm not in the hub of that now, but it's an amazing number, the amount spent now."