A player who had a key role in getting Posh to Wembley was goalkeeper Jed Steer, who saved two penalties in their shoot-out win over Wrexham in the semi-finals.
But he was delighted no such heroics were needed against Birmingham, although he made a crucial reaction save from Jay Stansfield during 11 minutes of added time to preserve a clean sheet.
“We came in as heavy underdogs, but we always believed. I don’t think I had a save to make in the first half, the boys in front of me were brilliant,” Steer told BBC Look East.
“We are a team, and a club, that takes this competition very seriously – it’s a good competition because you’ve got this (Wembley) at the end of it.
“Any final we’re in, we want to win. From a season’s perspective, in the league it probably hasn’t gone as well as we’d have wanted it to but we got a day out at Wembley and hopefully going into the last few games, we can take the confidence into those games as well.”
Manager Ferguson, who has a season left on his current contract, had to rebuild the team after a number of leading players left last summer – and may face a similar challenge this summer.
But despite his desire for another promotion, the EFL Trophy will remain a special competition for the Scot.
Asked about it being re-named in his honour, he replied: “One thing that is under-estimated in football is how happy you can make people.
“We’ve given people some day out, and it’s a day they’ll never forget. Our fans have been spoiled.”
Perhaps a name change is unlikely – but how about a freedom of the city honour for Peterborough’s ‘greatest of all time’?