I've been playing Supercoach for about 14 years (~ 2007) and I've made it through a whole season I'd guess no more than four times. More often than not it becomes a ghost ship.
I create my Supercoach account within days of the new season's platform opening, and am on every day studying, researching and tweaking teams. I don't have friends that do Supercoach, so I play for overall rank and I think that's where I come undone as soon as I realise I don't have a top ranking team (dumb, I know). I'm a good coach, but I'm not a great coach compared to others - although I don't think it always takes a great coach to win this game.
I get involved with cash leagues to try keep me alive all season, but even that doesn't always prevent the ghost ship.
I think that I enjoy the creating of a team where you can make endless changes etc but following week to week is a commitment, especially if you are playing seriously where you need to check late outs, manoeuvre loopholes etc.
I'm probably speaking to the wrong crowd right now as my fellow ghosties may have already left, but I guess my question is how do you keep yourself engaged for an entire season where there isn't much light at the end of your 2021 Supercoach tunnel?