Answer:
A gradual or evolutionary approach involving managers at all levels
Step-by-step explanation:
By adopting the bottom up approach, it means that stag plugs is going to have a small beginning with this new attendance policy and with time it would grow to be more complex. Such an approach usually have incremental changes. The goal here is to draft a new attendance policy and it would entail starting from a gradual approach to a more complex or evolutionary approach.