He's been finished for longer than he was good.
That is a very perceptive analysis. I'm Irish, but Seamus had been past his best a full season before his horrible leg break. He should have been sold on five years ago. But Kenwright and co loved a bit of sentiment, and a bit of fighting spirit and a few rallying cries are always useful to paper over a lack of trophies.
A good player in his day - but incredibly overrated. He wouldn't have made an Everton squad in the 1980s, yet he's held up as some kind of legend. Only for those who only know Plucky Everton of the Good Times. A triumph of application over any actual ability. Any Everton player that has managed to stay at this fading club as long as he has could never have been up to much, simply because we ALWAYS sold our best players. If we didn't, it was because, frankly, nobody wanted them enough to make Kewnright give up a fig leaf. And Coleman was a fig leaf for him. As was "Bainsey" and "Timmy".
Coleman was an honest pro - but that's all he ever was. His misfortune to play at a time of near unparalleled mediocrity for both club and country was also his fortune. He wouldn't have played at all in better days.