When I opened a consulting firm, the biggest mistakes we made were always about saying yes instead of no: 1. Taking on clients who did not have their shit toge

When I opened a consulting firm, the biggest mistakes we made were always about saying yes instead of no: 1. Taking on clients who did not have their shit together. They were always high maintenance, never satisfied with the work, and constantly trying to make huge changes. 2. Taking on work that was beyond our ability to deliver on. 3. The single biggest mistake we made was partnering with another firm who we let do discover and planning for us. They sent us over a client we were contractually obligated to do development work for, and two screenshots of a "website" and told to "have fun." IT WAS A NIGHTMARE. We once had a client, after we finished their website, ask: "OK, so now how do I make money off this?" and I was like... dude... that is not our job. That is yours. Another client had a really ambitious and fun project that included the need to develop 4g connected cameras and computer vision. I voted NO on the project. I felt like we did not have the expertise or the resources to take on the project in a way I felt comfortable with. My partners disagreed, and I was out-voted. This is what incited me to sell them my share of the company and leave. Honestly I'm not really sure how that project went. Maybe it was fine, who knows.