For me the issue with the Barbarian wasnt the strength of the class, it was the virtual inability to play with the rest of the group due to the restriction on association with Clerics and Magic Users and the need to destroy magic items.As DM I allowed use of everything and as a player I loved playing the Barbarian. I don't believe the classes were as unbalanced as people are saying.
Overall: no. There are a few things I'd cherry-pick and include: some spells, the unarmed combat system, some magic items.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.