Putting this prediction out there now
BS will try to counter the current NBA small ball trend by playing a big wing lineup. We actually saw a little of this in the summer league when the team had Nader running the point against the Lakers. That was a failed experiment but with the right players I think it works.
Example.
When the Cavs go with
Irving, Smith, Korver, Lebron and Love
Cs counter
Brown, Hayward, Crowder, Morris and Horford
this places greater length on the court without sacrificing much mobility or any spacing. As Tatum develops he will work perfectly in this lineup replacing Crowder or Morris and his offense will put alot of pressure on the opposing team.
In the above lineups the Irving matchup stands out as a problem area however in a slower half court playoff game Brown can use his length to contest Irving and he has proven to have great feet for a player his size. This lineup also takes away the P&R as the switches are rather seamless. On offense who does Irving guard?
I'll give you a TP for this post but the above lineup needs some correction because there's no one on the floor who can facilitate the offense and no one to bring the ball up. Instead, that lineup will involve: Smart, Brown, Hayward, Morris and Horford.
But you're right that Brad and Danny have gone with the big wing concept. They're willing to forego the traditional rebounding lineup for one that offers spacing, shooting and the ability for Most every player on the floor to get 4 or 5 boards each (IT excluded).
The lineups and matchups are mind-boggling because even our traditional "small ball" lineups aren't very small but still offer the advantages of small ball. Put IT, Brown, Hayward, Crowder and Horford on the floor and you have 5 guys who can shoot the 3 consistently. Crowder not feeling it? Move Hawyard to 4 and bring Tatum in as the 3. They put an ultra-quick lineup on the floor? Put Smart in as the 1, move IT to the 2 and it's Brown, Hayward and Horford. Need some strength up front? Crowder, Morris and Zizic are available with the first 2 not impacting the spacing all that much. The Cs are going to be a match up nightmare for opposing teams.