The difference in the Baylor case is they are a private University (that receives Federal funds), so the Texas equivalent of PA Sunshine law doesn't apply to them and they can basically do and say what they want and not have to release any backup. What's going to have to happen here is find a way to file suit against Pepper Hamilton in the Philly courts where their offices (and the data, and presumably where some of the work was likely done -to get jurisdiction) are located, and precedent has already been made that Pepper's contract with Baylor is not for legal advice, rather is a consulting contract, rendering the ACP and Work Product arguments moot.
Atty John Eddie Williams of Bears for Reform has previously made a public statement he thinks they won't have to, probably because they have such powerhouses as former Texas Governor White and a few others on their team and deep pockets available to do what they think they need to do. IMHO they will have to take legal action in the long run, unless these people have some really good "dirt" on some of the Regents and are letting them know that behind closed doors.
Seems like the PA Sunshine law barely applies to PSU. Bagwell had to seek his FOIA stuff thru Tomalis at PA DOE.