Competitively selling

1st round pick is hopefully an earlier one gained from a Swayman/Ullmark trade, or can be swapped with a 2nd/3rd combined with an NHL ready prospect. CGY pray to the hockey gods that Grizzlick re-signs. Not much choice.

With the Hall trade, BOS open themselves up to take on a real centerman. CGY retain to give further cap space.

With Tage and Cozens taking over the 1C and 2C, BUF is in need of a defensive, penalty killing centerman exactly like Backlund. So... they get Backlund. CGY retains in case BUF wants to make bigger splashes and to make it a one for one trade. More unimportant pieces can be added on either side if necessary, but I think this is really close to being a 1 for 1 deal.

FLA who are pretty solid on F get some sorely needed D help, as well as some cap relief. I think this is also a one for one, but perhaps some minor pieces are inserted to round it out if necessary.

Sorry to be anti-climatic, but these two simply go wherever for whatever the best non-roster offer is. There are no other prime roster spots to be filled out, so just collect some picks. Either can be included in previous trades for more, or two separate trades, etc. Minor details.