We get it, Agile Coaches can be expensive.
When you ask most consultancies, they are going to tell you that it should be a 2:1 ratio of teams to coaches.
That can truly be cost-prohibitive and, truth be told, you’ve probably bitten off more than you can chew.
When planning your agile transformation, find a way to counter this. Hire Scrum Masters who really are skilled at being a Scrum Master and find a way to incrementally roll out agile across the organization.
Invest in coaches who can help guide through the systemic problems of the organization not just ones who observe ceremonies and give narrow feedback.
You will need external help, there are specialty skills that can be brought in to improve your Scrum Master, Product Owner, Technical, Testing and other capabilities, use them wisely.