When your operations start to strain, you face a choice: bring in a part-time operations consultant (sometimes called a fractional COO), or hire a full-time COO onto your payroll. They can do similar work, but they are very different commitments. Choosing the wrong one either commits you to more than you need, or leaves you without enough support. This guide gives you the plain-English difference, where each one shines, and a simple framework to decide which your business needs right now. And before we compare the two, there is a third option many owners consider first, so we will cover that too.