In Alfred Preferences, in the Workflows tab, click the + on the bottom left (next to Help) and go Getting Started → Stream Order. That explains the control flow.
But you’re unlikely to achieve success that way, because the way GUI automation (your resizing) tends to work is that the command is sent and returns, it doesn’t wait to get a response before continuing. Your best best is to chain those sequentially, not separately. If you really need them to be separate, you’ll need to add delays to give actions time to process. That can be somewhat error-prone, but so is GUI automation.
