Implementation of something is why you do an architecture. If you are implementing nothing there is little need to do an architecture. Without implementation the ROI (retun on Investment) for architecture is quite restricted, consisting of cost savings for what you did not implement.
Examples:
John A. Zachman: "During the 1980's, I became convinced that architecture, whatever that was, was the thing that bridged strategy and implementation".
"If you do anything long enough, you eventually get good at it." MK