I have an MA in my clinic. She primary works the front with scheduling and phone triage. It is nice to have an MA in that position as I can pull her to the back of the office prn to help out.
I have concerns about shortages leading to usage of MA's and tech's to perform higher nursing skills other than vitals and lab collection. I definitely have concerns with medication administration. However, in particular roles they are an added benefit.
Before I was an NP i worked night shift on a respiratory floor. We had one tech for the entire floor. Leaving the RN's to do all vitals, bathing, and bathroom assistance. While we did not mind doing it, it did often run us "into the ground".
In short, I think there should be clear structure on what they are and are not allowed to do. But in the right role they can be valued team members. .