I have identified three critical areas in a project to focus on. They all intertwine. It's up to the Project Manager to keep a close watch over them or suffer the consequences.
Review with a fine tooth comb what you are delivering.
(2) Scope Creep
Changes are inevitable, but keep it to a minimum.
Make sure you are delivering results.
(Note - this article was originally written by Drake Settsu and published on DrakeSettsu.BlogSpot.com in October 2015)
The Statement of Work also known as the SOW that a vendor provides needs to be thoroughly reviewed to ensure that all expected deliverables are there. The information in the SOW will also help to plan out the preparation work prior to the vendor performing their work. It also helps to plan out post SOW follow up work.
Read The Vendor Statement of Work for more SOW information.