Submitted by Ruhum
The vaults quitPeriod can be updated through the setQuitPeriod() function. Only the owner of the contract (AdminProxy through VaultController) can call it. But, the VaultController contract doesnt implement a function to call setQuitPeriod(). Thus, the function is actually not usable.
This limits the configuration of the vault. Every vault will have to use the standard 3-day quitPeriod.
setQuitPeriod() has the onlyOwner modifier which only allows the AdminProxy to access the function. The AdminProxy is called through the VaultController.
The VaultController doesnt provide a function to execute setQuitPeriod(). Just search for setQuitPeriod.selector and you wont find anything.
Add a function to interact with setQuitPeriod().
RedVeil (Popcorn) confirmed 
