By using GitHub with Travis CI, the team believes it will work faster, improve testing, grow developer confidence in making code changes, and, most importantly, deploy fewer bugs to production.
Given that, I am requesting you/your team create a set of KPIs to review in 3 or 4 months to determine if this change had the intended outcome. It's hard to make these things quantifiable as useful KPIs (that prevent eg gaming the system) but I think it'd be a good exercise for your team given your team's decision making process thus far.
Please post those KPIs somewhere public and trackable (wiki or phab).