I am sorry, but if everything you are saying is true this makes no sense at all....
An ETL-RX *IS* a *MANAGER*, just like your ETL-HL, SL, HR, etc.
*Any* ETL has full authority to alter a TMs schedule for any reason they see fit.
If an ETL says to himself "Gee, I really think Mark has been pushing himself too hard recently and could use a bit of a break." and says "Hey Mark, want to come in 8-1 instead of 8-3 tomorrow?" Guess what? That ETL is fully empowered to do that. Hell, they can alter a TMs schedule the same day with 5 minutes notice if they want. Now, it might be stupid to do that because then you piss off other TMs, but it is not a violation of policy.
Basically, the ETL-RX did absolutely nothing outside her authority..... there would be no grounds for corrective action.
Now, if a GSA or TL started telling people their schedule was changed without ETL approval.... yea, they would have a problem. But ETL-RX? Nope - full authority to change schedules to whatever they see fit for the store - especially when it comes to pharmacy TMs.
I am sorry, but there has got to be more to the story than this. Maybe, for example, the ETL-RX ran it by the STL and was told no, but did it anyway. In which case the issue was not changing a schedule, but doing it against STL wishes.... in which case it is insubordination, not an issue of changing a schedule.
But anyway - I had over a decade of time with Target. Never in that time did I *ever* see an ETL have to run it by anyone to alter a TMs schedule for any reason they wanted. (the one exception might be if it put that TM in to overtime, but that would be it)
A lot of TMs (for some reason) are under the impression that ETL-RX is not equal to other ETLs and is under them for some reason.... but no, they are equal to any ETL in the store as far as authority goes. You are probably misunderstanding what actually the issue was. ETL-RX can change a pharm TMs schedule for any reason they want. Something else happened you are not aware of....