Now identify your inner circle: the three traction channels that seem most promising. If you already have three channels in Column A, you're done! If you have more than three, then you need to get rid of some and visa-versa.
It is often the case that there are a few truly exciting and promising channels that emerge from ranking, but not a lot. Draw the line where there is an obvious drop-off in excitement. That drop-off often occurs around the third channel.
We want you to have more than one channel in your inner circle because we don't want you to waste valuable time finding your successful traction channel by testing channels sequentially when you can do so equally well in parallel.
You can run multiple experiments at the same time since tests take some time to run after they've been set up. Yet doing too many things in parallel leads to errors from lack of focus, which means the number needs to be somewhat low.