These exercises two things.
Firstly they support the rest of the program. If I ask you to hold your arm in a certain position then I'll also point you to exercises that make it easier to do that. It's great to know what the best posture or technique is but if there are physical imbalances making these postures too difficult to maintain then we're all wasting our time. They help make it possible for you to do the things you already know you're supposed to do. Secondly some of them will be useful in the management of particular overuse injuries. If you are managing an injury you should do so under the supervision of a qualified health professional. The TuneUp program will complement, not replace, proper medical attention.
There are two ways to use the information presented here. Firstly you can take any of the recommended sequences and use them as written. They are combinations of stretches and other exercises specific for a particular application such as a daily practice or a warm up. Secondly we can configure your own sequence or find just a few exercises that work really well for you. I know if ever I overdo it a 5 minute serratus anterior treatment is all I need. You should do this however in consultation with either me or your health professional.