I'll give this a shot. Not a Ducks fan so I'll probably get roasted by Anaheim fans for 1 reason and all other fan bases for other reasons - but that's why HFboards exist I think.
1 - Anaheim is 3 seasons away from being a serious contender (this is my opinion based on where they are right now). All my suggestions are predicated on that assumption 2023/24 season being the time to peak.
2 - Trade for Eric Johnson and the Avs #1 (2021) for Future Considerations (7th round pick, whatever) - Provides cap relief for the Avs and the contract expires by the time the Ducks are in a position to compete. Gives the Ducks another 1st and 3 years for that pick to develop with the Ducks competetive window. I know he has a NMC, but I think he sees the writing on the wall in Colorado.
3 - Trade for Tyler Johnson and Eric Cernak for Ducks 2021 2nd round pick - TJ can add something to the Ducks line up but realistically the value is in the Cernak, a 23 year old RHD that can play on a top pair or anchor a 2nd pair.
4 - Stay away from UFA's this off season - the cap moving forward will open up other opportunities like third party retention for additional picks. It could also open up chances to trade for players that their current team can't keep - ie: Schmidt to Vancouver for a 3rd or Toews to Colorado for 2 x 2nds.
5 - In the 2022/23 off season when you have the most cap look to add complementary pieces during FA. By complementary I mean players that fill important roles (PKer or face off person) but are not expensive 1st line players, by this point the organization should have an idea what areas they need to improve in. Some suggestions of free agents (I know they won't all be availalbe) Mikheyev, Nichushkin, Paul, Lazar, Sturm ...
6 - 2023 pre-season once again address the needs of the team, but potentiall look to add "that misssing piece". Current free agents I would consider Tarasenko, JT Miller, Klefbom, Dumba.....
7 - Resign Rakell and Lindholm veterans are important for playoff success. Try to find a way to move on from Silfverberg and Manson for picks/prospects
8 - Draft Beniers in the first 2021 and obviously the BPA in 2022
2023/24 season
Comtois - Zegras - Tarasenko
Miller - Beniers - Rakell
Terry - Steel - Lundestrom
Jones - Henrique - Johnson
Lindholm - Drysdale
Fowler - Cernak
Fleury - Mahura
Gibson - Dostal