Kyle Turris still did outplay James Neal, and the contracts I believe weren't too far off, so Nashville will still need a bit of incentive in this trade, as reuniting with James Neal isn't really an incentive for David Poile to make this move. It would be a huge incentive, but something a little more.

Rangers are already too crowded on the right side. Pass...

I do think we might need to add a little on top of Neal, but not sure what it would be since the value is close especially after the signing of Duchene.

I don't believe they are far off in terms of value when you take into account team need (works out for both team), a year extra and a bit more AAV on Turris's contract, BUT Turris is 2 years younger.
I think the deal is close though so finding that little value to make it work is tough. That being said I could see the deal working out for both teams if they can make it work, and if both players can find their game's again. There's a little more risk with the Turris contract if both players can't , but I do believe he's a better bounce back candidate than Neal, so there's that as well.

I could also just see the Flames standing pat with Neal and hoping that last year was an anomaly.

Brodie plays on the right with Giordano because of chemistry, but he is also a Left handed shot defense man who has played on either side in the past.