You want to implement change, then you better get the input of the staff. Don't they already do ADL charting?
Our CNAs carry around cue cards that informs them how to care for the resident. They sign it at the end of the day and hand it into the nurse.
If you feel your CNAs are lazy then talk with them.... wait.... are you a nurse? Because if you are not, then you should inform the nurse manager and let them decide if they are doing things incorrectly and then maybe you both can approach the CNAs with meetings.
BTW I hope you are able to form a more positive relationship with the staff.