You are forgetting that it is rumored the Canes are the ones pursuing Nylander hard, and that there are upwards of 15 teams interested. This isn't a case of the Leafs selling a player for below equal value in return. For all those saying that Nylander is not worth Slavin, they also have realize that Pesce is not worth Nylander. A Pesce for Nylander deal has Hall/Larsson written all over it. Pesce is the flavor of the week on here, but he is nowhere near the upside of Nylander.
As for an earlier post you wrote saying that in a bigger deal saying all of Svech, Necas and Fox are off the table. I agree Svech is likely not attainable, but as far as Necas or Fox (not that I want Fox, since it looks like he could go to FA after college), you have to give quality to get quality. If Pesce is the main piece you have to add someone like a Necas.