It was shortsightedness by Lockheed to preclude engine choices for their L1011 customers. Its TriStar was limited to the Rollers.
And the early -22s experienced frequent disc failures, not to mention the engine delivery upheaval due to RR bankruptcy. [This also had caused late delivery of RR powered 747s]
. . . Unlike McDonnell-Douglas, which had offered its tri-motor customers with engine choices.
