Part of me likes the fact that Everton is a home for players past and present. People who get the club and want to be there are vitally important.
Then again I do think that it can lead to lethargy, mediocrity, the maintenance of a mid-table, middle-of-the-road, everyone's second favourite club status quo.
In the case of Big Dunc, I would say he should be told to go and get some management experience somewhere else. Without knowing what he adds behind closed doors - perhaps astute tactical insight and fantastic man-management - I am personally fed up of the chuckles as he is spotted on the touchline ("you wouldn't argue with Big Dunc would you" & "if Big Dunc wants to hold the board then let him"). I feel like shipping him out would be a symbolic rejection of the 'fight hard but finish mid-table' culture of the club.
Emblems are always important
Hopefully he goes away and wins the Scottish Cup with Aberdeen or some ish and then comes back a winner