Of course. I didn't use the the word good for a reason.Mediocre means not very good.
The fighters will still be mediocre as Fighter is almost a MAD class. Fighters typicalls what a 14 at least is STR, DEX, and CON and suffer boosting INT/WIS/CHA. The ones who benefit from INT/WIS/CHA do so by casting wizard spells.If you use arrays, sure. If you roll stats, random being what it is, you will likely have at least one smart fighter, one wise fighter and one charismatic fighter. Since you can select skills, the group should be fantastic in combat and decent to good at exploration and social. It's unlikely to be mediocre at any pillar, but random also being what it is, it's possible.
Thaat's why I said decent. Wizard social spells are dangerous and are mostly emergency buttons or highly illegal/dangerous. But a wiard can afford to bump CHA and has the spells. Most classes can't do that.It depends on what you find to be decent. Most of the wizard's social spells also get him in trouble, arrested or killed, since they involve mind control/charm or invading thought and mind. Those spells would almost certainly be illegal and harshly punished in any civilized country. The social spells are poor, not even rising to the level of mediocre.
Sure. My point is the wizard has the option. The Wizard at base has access to 9 Roles before race and background and can cut anyof the 9 to devote more resources to any role they keep.That's fine, but when you go for control, it's all or nothing. There will be many rounds where the wizard simply wasted his turn and a spell slot. It's great when it works, but it sucks when it doesn't. Great + Suck = Mediocre.
Think of it this way. Imagine a game with all 12 PCs, one of each base classes. The wizard is the only class that is almost guaranteed to be able to carve out a unique niche for itself AND contribute to combat but at a well above average ability.
Whereas the Fighter and Barbarian would be doing Rock Paper Scissor to see who gets to be the main frontline defender.