The Arizona Diamondbacks have made a decision on how to handle their surplus of starting pitchers, with Michael Soroka remaining in the rotation and Zac Gallen moving to the bullpen.

According to Nick Piecoro from Arizona Central, Soroka will start Tuesday against the Miami Marlins.

The decision follows several days of deliberation as Arizona attempted to determine how to accommodate multiple starters returning from injuries.

The Diamondbacks experimented with a piggyback arrangement during Wednesday’s series finale against the Kansas City Royals, a game they would lose 5-2 on the road.

Both Soroka and Gallen had been stretched out enough to cover several innings, and Arizona wanted to continue building up their workloads after each returned from the Injured List.

The plan did not produce the desired results.

Gallen struggled with hard contact and allowed two runs (one earned) before Soroka surrendered a three-run home run that helped put the game out of reach.

However, that single game may not have been what ultimately separated the two pitchers.

Their overall performances this season and the different qualities each can provide likely played a larger role in Arizona’s decision.

Soroka has produced the stronger statistical season.

Despite dealing with multiple injuries during the summer, he has a 3.53 ERA and 1.16 WHIP in 99.1 innings this season.

The three-run home run against Kansas City damaged what otherwise was an efficient appearance.

Soroka had four strikeouts and issued only a walk in four innings of relief.

Gallen has experienced a much different season while attempting to rediscover the form that once made him the ace of Arizona’s rotation.

He has a 6.22 ERA and 1.57 WHIP in 101.1 innings.

Gallen did produce the better outing of the two against Kansas City.

He allowed two runs (one earned) on four hits (one home run) with a strikeout and two walks in 3.1 innings.

For Soroka, remaining in the rotation rewards the consistency he has shown when healthy.

His effectiveness is built around execution rather than overwhelming hitters with pure velocity.

Soroka’s ability to locate, change speeds and generate movement gives him several ways to navigate a lineup.

He can attack hitters differently depending on the situation rather than relying on one dominant weapon.

His composure is another important quality.

Soroka has dealt with significant injury adversity throughout his career, requiring repeated rehabilitation and adjustments to how he prepares and pitches.

That experience can help him recover from mistakes within games instead of allowing one bad pitch or inning to completely alter his approach.

He also understands how to work efficiently.

When his command is sharp, Soroka can create early contact, avoid unnecessary deep counts and give his defense opportunities to make plays behind him.

All this explains why Arizona continues giving him starts.

Soroka will get the ball Tuesday while Gallen transitions to relief.

With the Diamondbacks still managing a crowded pitching staff and additional arms returning, however, this may not be the final adjustment Arizona makes.