Believe me, there was much speculation about IBM's entry into the personal computer market--and there were those of us who hoped it would be a revolutionary new CPU, instead of a warmed-over version of the 8080. Still, the supply chain being what it was and IBM's uncertainty about the success of a product, made the 8088 inevitable. It was either that or the Z80, I guess. Supplies of other product lines were probably too thin. Second-sourcing, the mantra of product engineering was a big factor, I suspect.