This is an easy one. I don't bother remembering my Lync number, so have it show up on the Lync window itself, instead of having to go to the options tab every time. There's plenty of room for it on the Lync window.
Lync delegate access needs to be independent of all functions within Lync . Since delegate access is also needed also for the conferencing functionality and not all companies deploy voice it should be made independent. This could be better controlled through a policy.