Answer: the company is meeting or beating its performance targets and whether it is performing value chain activities in a manner that is conducive to companywide operating excellence.
Explanation:
The execution of a good strategy requires a team effort with every managers using their authority to ensure that all the workers under them take active part in the execution of the strategy.
The two best signs of good strategy execution are whether the company is meeting or beating its performance targets and also whether the company is performing value chain activities in a manner which is conducive to companywide operating excellence.