Mission/vision is often the largest thing rather than a small thing with regards to long-term success. Waging a war without an overall mission and vision for achieving it results in, at best, a collection of battles that can only accidentally be strategic (and usually judged as such retrospectively).
Of course operating under overly vague generalities while believing they are mission/vision statements is nearly as bad as operating with none.
Of course operating under overly vague generalities while believing they are mission/vision statements is nearly as bad as operating with none.