Quote Originally Posted by NigelWalmsley View Post
Which seems to me like an indication that the problem is non-casters not having a wide enough range of abilities. If one group gets shut out accidentally, but the other only gets shut out by rail-roading, it seems like the former is probably the problem we want to start with.
Again, that is one possible solution but not the only one or necessarily the best one. To use the typical examples, I would prefer if fighters could contribute more but also if wizards could contribute less. I prefer characters who are specialized and have weak spots, rather than characters who are like Silver Age Superman and has super-everything.

The mundane classes have more natural limits, I think. It's reasonable that the sneaky rouge is less useful on an open battle field or that the heavily armored fighter isn't the best in a stealth mission, but aside from very specific situations (like an anti-magic field or something) there's not really the same thing with casters.