Another option could be to replace the ACD number with a set which in turn is forwarded onto an ACD.
Let's say the ACD is currently 4500. Out the ACD, and create a set with the DN of 4500 on. Add CFW, a touch of HTA, with some CFXA.
Create a new ACD (4501) and add the agents to it. Then forward the 4500 set to the new ACD 4501.
This gives your agents the ability to change/modify the forwarding number, without having to worry about TOD, etc.
It also means you don't have to manually change the number every time they want to have team meetings, etc..
You may have to fiddle around with SFA on the 4500 set, so it allows secondary forwarding.
As an added feature, you could add RCFW on the set, which gives you and the call centre to forward the calls during emergency evacuation, stuck in traffic, etc..
Good judgement comes from experience, which usually comes from bad judgement..