أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
I would interpret guidlines as a brand strategy, and the answer will be yes for a brand with a strategy, clear promise and well defined target segment. Flexibility comes within a strategy when a change is needed to cope up with market changes.But a brand without strategy, will lead to something like a try and fail approach and this brand will not be able to stand out among the crowd.
Solid Word itself answers your question completely . Brand is Solid with proper guidelines because it is working on principles and have studied till grass root level . Keeping all Pros and cons into account have framed these guidelines .
With the passage of time all guidelines should have flexible content because hope you would believe - Things which were Luxury yesterday is need today & that will go on till this life is moving .