nj says yes to the kubalik trade no to the jvr trade

There would be no need for the Flyers to give up their 2nd in the trade with Chicago if they could just go to New Jersey and gain a 2nd, by your trade logic.

leafs decline, we want sandin instead

Not all trades in this situation happen at the same time. The second trade is a deadline trade and NJ will not want to pay $7 million where Phil is looking to dump the whole cap. Comparatively, NJ has made it clear they want to push for a playoff spot and they lack wingers. They easily could make that deal at the deadline and again Flyers get the full cap dump minus the cap hit of a young player coming back.