The C.102 was never going to compete directly with the DH.106 or any transatlantic jetliner. She was a short/medium-haul type, similar to the 727/737, ideal for the likes of Bosyorkington hops, Dallas-Houston, SF-L.A., Tokyo area, SF-Reno, that like.
As for "forcing" TCA (later Air Canada) to buy anything, fat chance. Howe wanted the C.102 cancelled so Avro Canada could increase production of CF-100s for Korea--despite the fact the production wouldn't come on stream until the war was over...
TCA rejected the C.102 because Avro hadn't used the AJ.65 (Avon) engines, which weren't yet available to civilians.

Nor was anybody else likely to buy C.102s if the contracting airline (to wit, TCA) wouldn't...
That said, had Avro been able to persuade Hughes to do so, he'd have had a world-beater: the C.102 was cheaper than any piston competitor (only US$500K a copy), faster, cheaper to operate (fuel, maintenance, & crew), & more profitable (almost double the trips/day, less crew, cheaper fuel & maintenance). Why the idiots in charge at TCA don't see this...


