sorry, but all the trades are an absolute NO

Justin Holl and Pierre Engvall for a 6th?

Detroit is pretty set with RHDs so they really don't have a need for Liljegren. I don't think Detroit trades Bertuzzi for Amirov and a very late 1st. Amirov he the potential to be a top 6 forward but Bertuzzi is coming off 2 20g seasons and was on pace for 30 before he got injured.

Everyone says no

Some of those UFAs signings are awful for the Leafs. Giving away cost efficient futures don't help the Leafs. You've traded cost efficient players for nothing.
Having two wingers to play centre....sure.

Here is a run down of every trade for you, because there's a lot to dissect here.

Wpg: Not a chance. You don't give up your franchise dman for a late first if you are contending. Just no.
Edm: If Edmonton does it, why not. Kerfoot is easily expendable. If the leafs are offered a second rounder for him, they must do it.
Phi: Meh, I guess, but swaps like this don't just happen for no reason at all. Won't happen.
Det: I think the value is there. Not sure if Detroit wants to deal Bertuzzi though. He's almost like their Zach Hyman.
Buf: What is the point of this one? People roast Toronto's defense and then turn around and deal top 4 defenseman away for free (Engvall is at least worth the 6th by himself)? Why does this benefit the leafs in any way? It doesn't even suit Buffalo's needs anyway, they are rebuilding, but I'm sure they'd be happy to have a free Justin Holl, just some team would offer more if Holl was available (he's not though).
Clb: Why? He's an effective defensive forward. Why sell him off for cheap just get someone else? Especially since he's probably worth more than this deal.

All in all not horrible, but just not realistic and isn't a good idea for reasons mentioned above.