In order to avoid such a delay issue, a project manager should initially contact multiple vendors, and get all the information he/she needs for the product. This would give flexibility on time and flexibility to switch to any other alternative solution. Another thing to consider is to allow an extra time period during the planning phase as a precaution time in which if any delay occurs the overall final plan would not be affected. A backup plan is always essential and that should be discussed by the team member and PM.