Dear Gretchen,
thanks for your feedback. From my point of view it's a managers responsibility to whom he/she delegates his/her duty. In our enterprise manager's deputies are not always "managers", can also be that a "normal" worker is a deputy (e.g. a key-user).
However, I still assume that the managers knows to whom he/she delegetes this authority and in exceptional cases the traceability is continuously given. With my configuration the manager (and if a delegation is set as well the deputy) will be informed by email automatically if a new request needs to be approved. In case of uncertainties or missing information the manager can always review the deputy's decision and react. I am aware that this can lead to a potential risk, but somehow a company has to trust their employees (mutual trust) and has to be "workable" to compete with others.
Looking forward to your furhter thoughts in this regard.
Best regards,
Alessandro