One was that since IBM (generally) supports four releases on each Power system that IBM change the scale up a notch.  Keep four releases but instead of x-2 to x+1 go to x-1 to x+2.  So instead of Power 11 supporting 7.4-iNext they should have had Power 11 supporting 7.5 to iNext+1.  Instead of targeting Power 8 upgrades (topped out at 7.4) allow software vendors to be able to buy a new machine which will allow them to get some longevity and be able to test a couple of new releases for their customers.  The vendors can keep an old machine for the older customers.  For more info:  https://ibm-power-systems.ideas.ibm.com/ideas/IBMI-I-4596  

The other was to have a P05 tier level system in every new initial Power system rollout.  I understand the philosophy of getting new processors to the high end for those straining for new hardware.  However, these same people often cannot migrate unless their software vendors certify the new hardware (or new release of IBM i).  And the software vendors often want a small system for this project.   For more info:  https://ibm-power-systems.ideas.ibm.com/ideas/PSD-I-61