The Security services management video is most interesting to me, as it lays out the way BCX helps clients move from Capex (long term, strategic, cash intensive) to Opex (shorter term, growing-needs based, ramped up as required) facilities.
The "Driving Operational Efficiencies" would have been my favorite as the content in it is most relevant to what I do, but it turns out that it isn't a video, despite it being marked as one on their site... So I'll have to go with the
"Cloud Solutions For Medium Businesses" Since it discusses the relation to the advantage of using the cloud in servicing the changes in requirements that the next wave of customers (Gen Z) would expect from your business...