In order to completely understand the moves a team makes the timeline of events must be listed as well.
Pre Draft
Cavs and Nets agree to a deal involving Bridges and Schroder for Garland and the 20th pick
Explanation: Cavs get the coveted 2 way wing and pair his size and defensive abilities next to Mobley and Mitchell long term.
Cavs extend Mitchell to a 5 year max with a no trade clause.
Draft
No draft picks after trading their 20th to the Nets
Free Agency
Cavs target front court depth by going after the best rebounder of the best decade giving Drummond a 3 year 40 million dollar deal with the last year being a player option. This uses their full MLE but with 13 players already under contract it's reasonable
Cavs add more veteran front court depth bringing Tristan Thompson back on a 1 year deal for the minimum
Cavs target another ball handler who can shoot for the minimum in Damien Lee and bring him on a 2 year deal with the 2nd year as a player option
Non Decisions
Cavs and Mobley essentially agree to wait on an extension to allow for more growth from Mobley before giving him a max extension
Trading Allen was an option but they decide to hold onto him for at least the first of half of the year
Start of Season
Starting lineup:
Mitchell
Bridges
Strus
Mobley
Allen
Off the bench they lean on Scroder, Levert, Merrill, Niang, and Drummond. They still keep some of the helpful pieces from this past season in Craig Porter Jr and Dean Wade involved a bit but sporadic minutes at best.
During the season
They start the season strong with a top 5 defense all year. Allen isn't traded and the team ends as a 2nd seed in the East.