I get it and I don't mean to sound so sceptical but we have seen many teams and managers have one great season.
I'm only wondering if there are signs of him being a great manager due to his tactics and style of play. Is he doing anything different?
At this point it doesn't really matter if managers are doing anything 'different'..
What JJ needs is a coach who can raise the bar, improve the mentality of this team and elevate the level of young players.
Players like Calafiori and Zirkzee have emerged as breakout stars under Motta's watch. If Bologna finish 3rd, this would be their best finish in like 50 years. Also statistically, they have the joint 2nd best defensive record in the league tied with JJ.
They finished 13th in Serie A when he took over and now they'll be playing in CL in a couple of years. Teams like Bologna aren't expected to compete for CL places so we can't really brush it off as one great season.
He ticks all the boxes if you ask me. His playing career doesn't matter but being in the locker room of some huge teams does bode well for a coach to manage a club of this size, especially one whose stock is on the rise like Motta.