In acting, you're only responsible for your part. When you're directing, the load is on your shoulders, so you have to feel a strong connection to the material. It's a higher bar to get over.
Bob OdenkirkWith acting, if a friend asked me to be in a movie or TV show, there's a lot of things on my résumé I did without reading them or knowing what they were. I just said I'd do that because a friend wrote it, directed, produced, acted in it. With directing, I'm sticking to my guns, not that a lot of people are begging me to direct.
Bob Odenkirk