The success of your team meeting is directly proportional to the amount of planning you have invested in that meeting. You can't just show up and expect magic to happen without a little bit of forethought.
Your team has worked hard and now needs management support and/or commitment to implement your recommendations. Hopefully, you have been keeping the management group informed of your team’s progress, so the presentation should not be “new news.” Nevertheless, take time to prepare for your final presentation.