North jersey doesnt have two philly crews because north jersey is too far from philly. Crews are usually in close proximity to a home base( for the most part).The original philly crew started down neck in newark because a phiilly relative lived there. They got the ok from carlo gambimo( i think)and they were allowed to domsome business.
Thats how it started, it never got too big. They worked with everyone up there.
Tony Caponegro had a large book and shylock biz, he was very powerful.
If he was successful by becoming boss, there would definitely be more philly crews in north jersey. The tables would of been turned. That said, if the genovese didnt kill caponegro, i strongly believe Philly would have killed him. No is philly gonna answer to a guy 2 1/2 hours away.