I&#x27;ve been in great and poor working relationships.<p>I&#x27;ve had co-workers who either don&#x27;t add anything, or who actually reduce the amount of work or direction a project can progress.<p>I&#x27;ve also had (far fewer) working relationships where the you &#x27;leap-frog&#x27; each other, pushing the entire project forward in leaps and bounds.<p>It&#x27;s the second thing that I&#x27;m looking for in a co-founder. This is why I think being a part of yc or a fellowship might help. YC is apparently expert at picking great people, so it is a pre-filter of amazing people,who likely have a further network of amazing people. (not that my network isn&#x27;t great, but most of my people don&#x27;t share my interests).