Lehner via Toronto,
Janmark via San Jose
Foligno via San Jose (4th)
Thanks for those, very helpful, so just to lay it out:
Lehner: 1.1M saved (Vegas benefit) + 1.1M retained (Toronto cost) = 5th round pick less the value of Dzierkals. That's a total of $2.2M in cap impact for less than a 5th.
Janmark: ~$600K saved via SJ (Dallas' benefit) + $600K retained (San Jose cost) = 5th round pick.
Foligno: $1.375M saved via SJ (Toronto Benefit) + $1.375M retained (San Jose cost) = 4th round pick.
VS
Hyman: $500K saved (Edmonton Benefit) + $0 actually retained (no cost to Toronto) = ???
I suppose you can argue that the aggregate benefit to Edmonton is higher (8 x $500K), but Toronto doesn't have a cost at all, so its not comparable. I would firmly argue that someone else's cap savings is worth some multiple less than the actual cap retained and the $$$ being spent. In short, San Jose and Toronto were actually paying that retained salary and it influenced their cap.
The value would most logically be ascribed (entirely/predominantly/mostly... you pick your word) to the retainee's actual dollars paid and cap retained.
That is not the case here... Toronto pays nothing and retains nothing. Sure Edmonton's gain must be worth something, but it's clearly not the same sort of equation as any of your examples above.