Generally when working in teams, people are quick to say the common adage that
A chain is only as strong as its weakest link
Which implies that it only takes one poor team member to destroy a team's work. However I was wondering if anyone knew of any opposite versions of this, in which one strong member on a team can lead the team to success, or, more specifically what I am looking for, the idea that one weak member can grow stronger from those team members helping around them. A quick thought I made up myself went as
If the strong help the weak lift weights in the gym, soon all will be strong.
But I was wondering if there was something more established I hadn't heard of.