I volunteered at LPVRS for 11 years.
Here's something that you may not have tapped in the past.... It is a High School Graduation requirement that all students obtain 180 Student Service Learning Hours.
Basically, the kids get these by finding volunteer opportunities. trust me, that's not easy. Maybe your team should consider developing a web site that lists all of those opportunities complete with contact information etc.
There's a perspective volunteer force out there. If you guys are willing maybe you should take advantage. Not only do you get great volunteers but you change the mind sets of kids today. Teaching the importance of giving will lead to a better world.
As far as what the Tri-County area could use.....
Many of our elderly cannot drive - They need shopping, Dr's appts etc.
Young single mothers need training and support.
Extend Christmas in April on a smaller level... Have volunteers cut grass, clean up yards etc.
Identify needy Kids - get em' school supplies
I understand that a new MADD chapter is starting in St. Mary's County. Maybe the best thing for you guys to do is to contact all of the new and existing org's and ask them what they need.
I have contact numbers for most of the Sexual Assualt and Youth organizations in the county. These guys always need help!
I don't know how willing you are to get down in the mud where the trouble is but prevention seems to be a leading trend.
Ton's of need out there. If you need more info or any help just PM me. Good Luck!