Who initiate/facillitate planned deviation?

We have considerable inventory issues caused by overstocking of expiring ingredients, OOS manufactured bulk powder, etc.

And they lead to constant deviation from master formulation of finished product.

For instance, an ingredient has to be used at a higher dosage and if affects across many batches.

We are raising 1 deviation per affected batch after much consideration. However, this results in piles of deviation and management by ? to keep up with shuffling of manufacturing plans to consume the ingredient.

Any words of wisdom would be appreciated.

Change the master formulation by change control system.