If only for cap reasons next season the Leafs need 1.4m Sandin over Chychrun.

You're missing Knies here

lol He is giving up too much as is

Not even close. a B prospect, a good 22-year-old defenceman, a late first and a late second NEXT year. That doesn't even get Chychrun.

The ask from AZ is the equivalent of 2 x 1st round picks and a 2nd round pick for Chychrun as I understand it. In this deal they get thier 1st and 2nd. Sandin is worth more than a 1st and Hirvonen is = to a 1st.

I would rather keep Sandin as I see him as being better than Chychrun in the next year or two

That's a fair assessment and I respect your opinion. I think it is safe to say that this isn't a deal that works for either team