BPF
There are two elements here Single Pilot and Multi crew. In Multi crew its vitally important that each pilot knows his/her role and duties. We always have a take off Brief as well as an approach and landing brief in the cruise Before TOD.
We discuss the Sids and the Stars on arrivals as well as a briefing on the approach charts as well as the missed approach procedures.
All this is vital in a Multi Crew invironment.
Single pilot you literally should do the same but now there is no partitioning of duties as all the duties are yours alone but its useful to self talk and clarify rather than be up there working on the hoof
pace