OpenShift won't compete with the cloud offerings in the long run. Redhat are currently competing with On-Prem offerings and trying to make a case for 'hybrid'.
Even in this market OpenShift is competing against at least 15 alternatives. For anyone interested I've been crowd sourcing data for each and trying to work out key differentiators.
https://docs.google.com/spreadsheets/d/1nAgDxQZYeAMLwz8iI3_a...
OpenShift is definitely differentiated in terms of security. They also have network and storage features that are arguably valuable to enterprise customers.
Google GKE On-Prem is out soon. I never see Azure Stack mentioned so maybe Microsoft will look into a Docker acquisition to boost their enterprise footprint.
The cloud seems like the bigger growth area though so perhaps this On-Prem container platform land grab will be short lived.