My new Nurse Manager is making everyone want to quit

Our old Nurse Manager left the position to become a part-time floor nurse and a new one was hired a couple months later and nobody can stand her. She changed our pt ratio from around 5 to 1 or 6 to 1 (on good days 4 to 1) to Team Nursing. Which means if when have 24 pts, there will be 2 RN's and 2 LPN's and we split the pts down the middle (12 to 1) and Yes I mean 12 to 1. It's like having 12 pt.'s to yourself even though you split the duties. The LPN's give a ton of po meds, the RN's give a boat load of IV meds, prns, and also have to do assessments (Imagine the paperwork). ON top of that, we never feel like we did a good job at pt. care. We don't get time to read their histories or to actually talk to them because we're running constantly. We don't even get group report. I actually liked knowing about what was going on with everyone else's pt.s especially when there was an emergency and we all had to pull together or in case a physician came by and the pt.s nurse was busy. Now we don't know anything about anyone. It's frustrating and she's changing up even more crap and people are quitting or becoming prn because they can't deal with it on a daily basis and the "idiots in charge" have done nothing to fix it. We don't have enough staff to take care of the pts properly and the rate of falls is increasing along with bedsores. There is plenty of talk of some of the people I work with quitting and they are great nurses who have been at it along time who used to LOVE to come to work. I don't know what to do.