I think the problem with the skills at the moment is that the game encourages a high-intelligence character specialising in a certain attack combination.
What the game really needs to encourage more of, are adventuring skills (both social as well as crafting and lockpicking).

The Player characters, IMHO, ought to receive two skill point pools - one that can only be spent on adventuring skills and one that can be spent on either adventuring skills OR damage skills.

As the Player interacts through either Scarlett or Roderick, these two characters need to have an aspect of damage-dealing to them (as with NPC party members), but also justifiably well-rounded adventuring skills.
Spending points only on adventuring skills makes Scarlett and Roderick less appealing in combat. So it feels at the moment like my choices, as a player are:
- Open more locks and get some items (nice) OR
- Craft some stuff (also nice) OR
- Bring righteous fury down on large groups of Orcs (awesome!)

This is why I think getting adventuring-specific skill points for Roderick and Scarlett in addition to their regular skill points would be ideal.