134. New-product development can be hindered by several factors. List three of the factors hindering new-product development. 135. Companies handle the organizational aspect of new-product development in several ways. Some companies use product managers, others use new-product managers, and others use different techniques. List two additional organizational methods . 136. 3M, Hewlett-Packard, Lego, and many other companies use the stage-gate system to manage the innovation process. Define the stage-gate system.  Â