Luka Dealt to Lakers: Nico Harrison is a Basketball Terrorist

[Dahlsim]

... 
..... So, only if Luka flames out AND the Mavs win a ring over the next 1-2 seasons will it even occur to anyone to let Harrison off of this hook, both locally and nationally. 

Good stuff.  In terms of Nico's thinking it looks from your points 1-3 we see it pretty much the same way. 

Honestly?
Mavs have to win a ring in next 2/3 years AND Luka not... So chanches are like 0. Zero.

Ultimately no, Harrison is done like GM in Dallas for me.
No way out.

The general idea that the Mavs must win AND Luka must fail, I can see but don't necessarily agree. 
I'd say IF the Mavs actually won an NBA championship, no matter whether Luka did or not, I don't think Nico would ever be a real Hero but I also don't necessarily see all fans holding him up a pure Villain either.  

... 
..... So, only if Luka flames out AND the Mavs win a ring over the next 1-2 seasons will it even occur to anyone to let Harrison off of this hook, both locally and nationally. 
The chances of winning an NBA championship are always pretty low, even when things go right, so the much smarter play would've been to continue building around Luka until either A) he won or B) the NBA/Mavs fan community arrived organically at the idea that it wasn't going to happen here. 

I think the chances that Harrison makes it to the other side of this mess are slim to none.

I agree of course that sticking with Luka was the smarter play for the franchise overall just based on the fact the Luka's age gives the franchise more bites at the apple than the 3 year or so window that Anthony Davis might yield.  The outlook for the shorter 3 year window may also have been better with Luka, but I'd say that much is at least debatable.  

But then from Nico's perspective again, he has said he's not looking at windows longer than the next few years.  From his perspective if the team has a realistic window now, they have to go all in to take their shot. 

Per the point KL made earlier Winning a championship is always a low probability for 90% of NBA teams. 
The Dallas Mavericks franchise has been in existence for 45 years and managed win what?  ONE Championship. 
If the team were to pull off only it's 2nd ever Championship its hard to imagine some of that shine not rubbing off on the GM that pulled it off, even if Luka Magic gets the chip also in LA.