Again for those who wish to read the arbitrator's decision there is a link below. It makes for fascinating reading.
Compare also the Board's action and arbitrator's decision with the principles laid out in the 1966 Enterprise Wire case. It lays out seven principles of due process when discipline of employee. It is the boiler plate arbitrators apply when deciding on a case before them. The principles have been upheld in subsequent court cases. You can see the arbitrator applying the Enterprise ruling in her ruling in this case.
Or if you wish to read Enterprise in its entirety here is a link: