Is the role of a Captain overrated..?

Don't try to dismiss the role of being a captain just cuz arsenal's captain sucks! The same CAN NOT be said for other team like Real Madrid,Fc Barcelona,Chelsea or Liverpool.Let's take a look at their captains Casillas,Puyol,Terry and Gerrard.They're all homegrown! Now this doesn't mean that a captain has to be homegrown to be good. He needs experience and mental stability! And unlike Fabregas a captain WANTS to be at the club.This is IMO arsenal's biggest problem and you can't solve it by money.You can just outright buy a captain. What i suggest is that you bring back a former player(that isn't ****) and have him captain Arsenal.And IMO Henry and Viera were both good captains.