SAP and doing things cheaply - that dog won't hunt.
Yes they will tell CEO's that moving the IT systems to the cloud will work out cheaper, and many of those poor soul's will buy that fabrication. But I've yet to to see any SAP system outsourced that actually saved the customer money; far from it, they usually end up paying much more for a service that they have little control over.
As for "everything to be mobile, because that's the way that the users wanted it"; what utter tosh. Yes there are some valid reasons for some things to be mobile, but certainly not everything. Most of the examples they push forward are based around marketing type apps, which are OK for marketing drones, but sod all use to an FD or credit controller trying to work out which deadbeat customers still haven't paid their bills.
"The CIO ends up being responsible for a lot of things he can't control." And one guaranteed way of doing that is to buy into the kool-aid that SAP wants you to swallow; that everything they do is wonderful and you just have to follow their lead for everything to be perfect.
As for HP, their services have become increasingly poor over the past few years; I am going to have to spend the rest of the year picking the bones out of god awful cockup that they are responsible for, so don't tell me that they are in any way capable of offering satisfactory advice.
""As a user, I don't want to know any of that background."; absolutely true. But someone at your company had better bloody well know and understand about that stuff otherwise you are going to end up being completely screwed over, possibly even to the point where your business goes down the pan.