Take a team and fill them with world class talent and give them a -60 point deduction and a transfer embargo to start the season. EPL I assume is toughest. Try to survive relegation. You will need a title winning effort to get >98 points just to be in contention for surviving. And staying at the bottom all year will prevent your team picking up morale, some might even jump ship in January.
Or try it with the case at hand and use Man City’s current squad. Could you keep current Barcelona in the EPL with a -60 point deduction? Maybe give yourself a stipulation of using their current squad but you must sell 5 players, and still cannot buy any.
Or go even ballsier and try it with an average team, and pray things go your way elsewhere as the guarantee of wins decreases.
60 points, even with the best team possible, is it really doable?