Hi all,
One thing to keep in mind (disclaimer: yes, it is a IT security understatement), you must not have multiple people using the same administrative ID in order to pinpoint who did what.
Moving over that, another suggestion is to use some configuration automation tool, like puppet, chef or ansible and manage your configurations with these tools, rather than manually into the WAS console. Since these config mgmt tools all rely on SCM systems such as git, you can easily audit who did what, when, and easily reverse some misconfigured parameter.
Cheers,
Alexei