I would have to say... no. This is a bad idea. Paladin's problems are not nearly bad enough to warrant a complete revamp.

Furthermore, of all of the wailing and moaning people have been doing over the idea of homogenization and people using the term incorrectly, this is a thread that truly makes a homogenizating suggestion. Too many jobs have some sort of Stack mechanic or otherwise some kind of persistent buff that results in severe reprocussions should it fall off. Paladin doesn't need one too. Not now, not ever.