A good product manager will do a little of everything and a great deal of all this: Spec out what the product should do and the road map for where it will go over time. Determine and maintain the messaging matrix. Work with engineering to get the product built according to spec. Work with design to make it intuitive and attractive to the target customer. Work with marketing to help them understand the technical nuances in order to develop effective creative to communicate the messaging. Present the product to management and get feedback from the execs. Work with sales and finance to make sure
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