If you bring in top quality forwards - they will have significant match day experience - perhaps a change of culture is really required - that means changing the people who drive that culture.
The culture that worked for a particular group of players with a very specific type of bonding is no longer appropriate with this group of players. JJB has been around during the demise of the culture/standards - so why do you think him being around/his influence will suddenly improve things?
Let's face it his offering on the field doesn't justify his inclusion anymore.