Taking in new members post shtf

[Bonnox]

First let me set the scene, I was watching the walking dead tv series on tv the other night which actually started an interesting conversation with me n the missus, as in another of my posts I haven't yet fully discussed prepping with her but the programme managed to plant a little seed, now my television all viewing habits aren't open to discussion but in this episode the 'hero' is trying to decide wether or not to let in new members to his tight knit group, and we were discussing the pros and cons of doing so, my thought was no, limited supplies etc, but she was thinking that it may depend if they have any skills that may be of use to the group, what do you guys think ? I get the feeling we are all prepping for our families to survive but would we be better in teams ? Combine supplies, more hands make light work etc ?