[quote=@t2wave]
<Snipped quote by Lugubrious>

She's having trouble walking around right now and is extremely green with regard to being a mage. I don't know how helpful she would be.
[/quote]

If she does not do, she will not learn. 
If her partners are good enough they should be able to cover her shortcomings and teach her a bit about being a mage in the process. 
Makes for good story and character development. 
And if anything, they don't necessarily need one strong person. It could be two weaker people.