There are probably three major questions to answer when operationalizing a GTM plan: What is the governance? Meaning who is in charge? What is the division of labor? Who holds what decision rights (e.g., decide, influence, escalate)?
When do you scale?
There are two broad options: launch-and-learn or test-and-scale. In a launch-and-learn model, scaling happens first as the commercialization comes online across the enterprise at once. Learning then occurs after rollout and across the enterprise. This type of GTM implementation makes sense in a low-risk, high-resilience situation.
In a test-and-scale model, the innovations come online in pockets and pilots. Pilot learnings inspire changes to the plan, and the finalized plan is rolled out in waves. The test-and-scale model makes sense for implementing a commercialization strategy when external and internal resilience is low. It also makes sense when resilience is high but risk is also high.
And, last you need a framework.
In either scaling framework, what is the cadence of activities over the course of the implementation? I've used a 4-step process successfully:
1) Act on the plan
2) Measure the actions’ results
3) Share and discuss the results
4) Adjust the plan