NBA playoffs 2022 - What to expect next in the bout between the Boston Celtics and Milwaukee Bucks

No series in the 2022 NBA playoffs has featured more twists and turns than the Boston Celtics vs. the Milwaukee Bucks, who head to TD Garden for Wednesday's Game 5 tied 2-2 after alternating wins and losses.

Although the New Orleans Pelicans and Phoenix Suns also traded wins throughout the first four games of their opening-round matchup, the higher-seeded Suns never trailed in that series. By contrast, the Celtics have never led, getting blitzed by the Bucks at home in Game 1 and losing a Game 3 thriller but rallying both times to even things.

Because of that back-and-forth nature, it has felt like whoever won the most recent game is in control of the series — and perhaps favored to win the NBA championship. Projections using both ESPN's Basketball Power Index (BPI) and FiveThirtyEight's model show one of the two teams claiming the title better than 40% of the time.

With those stakes in mind, let's take a look at what we can expect from this series in Game 5 (7 p.m. ET, TNT) based on how this roller-coaster showdown has played out.

The pivotal moment in Monday's Game 4 came late in the third quarter, when Celtics coach Ime Udoka made a seemingly trivial substitution:

Guard Marcus Smart replaced backup center Daniel Theis, who got extended minutes with Boston starter Robert Williams III a late scratch due to knee soreness.

Subbing in a 6-foot-3 guard for a 6-foot-8 center meant the Celtics went to just one traditional big man, a look they've rarely used in the postseason. Before Monday, Boston had played fewer than 25 competitive minutes through seven playoff games with a lone big man. Over the last 14 minutes and 30 seconds of Game 4, they almost exclusively played that way, with the brief exception of a single defensive