Apple has a LONG way to go, to really nail down what the Enterprise user wants/needs.
I can see the iPad Pro fitting in for the "power user" crowd who opts to use an iPad in place of a notebook computer. If you're the type who uses Office 365 on your iPad every day and who actually cares about split screen multitasking because you're constantly needing to copy/paste between iOS apps? iPad Pro is quite possibly what you need. The bigger screen means you can really run 2 apps side by side in a meaningful way, or view more cells on a spreadsheet at once. Presentation graphics will look more like what people are going to see on a regular computer monitor too.
BUT, Apple really doesn't have the central administration and control thing down that well yet. The Enterprise almost always uses Microsoft Active Directory to handle user logins/passwords and permissions to things. Apple is just now really starting to try to take integration with that seriously. (They used to recommend this convoluted "golden triangle" architecture where you ran a Mac server with OD linking to Microsoft servers with AD, and had the Macs use the OD synced with the AD. Now they say that's no longer what you should do, but it's still rare to find an Apple tech or engineer who can explain the "right" way to do it instead.) We had nothing but hassles using Apple's MDM to try to manage our iOS devices and laptops on our network. The thing just kept crashing and causing users not to have permission to run their apps anymore, etc. Big mess.
And to this day, I find Apple Remote Desktop rather clumsy and clunky. Microsoft's remote desktop service "just works" the way you expect Apple products to work, while theirs feels like you're digging through years of cruft, caused by patching over patched updates to patches, trying to keep the old code relevant.
Heck, there are still corporate VPN products in widespread use that don't have native Mac OS X clients for them. You *might* get in using a $100 3rd. party VPN product - but definitely not with what OS X does out of the box.