Spencer Carbery’s patience with the Capitals’ power play has run out.

At Sunday’s Capitals practice, the head coach made several personnel changes to the team’s two units ahead of Monday night’s game against the Columbus Blue Jackets.

The changes come after the “not even close to good enough” power play went 0-for-6, including a failure on an extended 5-on-3 advantage, in a 5-3 loss to the Tampa Bay Lightning on Saturday night. Heading into Sunday’s NHL games, the Capitals are operating at just 14.7 percent effectiveness while a man up this season, the sixth-worst rate in the league.

“I just think it’s gotten to a point where — I talked about it maybe a week ago — you want to be patient with, whether it’s line combinations, power play combinations, D pairs, give it time to see what it can become, and chemistry to be created,” Carbery said. “So the majority of the time, that comes with some growing pains.

“But then it gets to a certain point where, as a coach, I need to make a decision of what makes sense for our hockey team. When it repeatedly isn’t going well, then we need to make adjustments and find ways to improve it. One of the ways you can do that is by changing the personnel.”

Capitals power-play units at 11/23 practice

PP1: Jakob Chychrun, Alex Ovechkin, Justin Sourdif, Ryan Leonard, Dylan Strome

PP2: John Carlson, Sonny Milano, Ethen Frank, Anthony Beauvillier, Hendrix Lapierre

Tom Wilson and Connor McMichael did not practice, as they took the day off for maintenance. Wilson will likely take Sourdif’s spot on the top unit, while McMichael could take the place of one of the forwards on the second unit.

The most notable difference from the power play that the Capitals unsuccessfully sent out against the Lightning is that Chychrun and Carlson quarterbacked separate units at practice. Previously, Carlson was at the point of the top unit, while Chychrun, a defenseman, was often playing down low in front of the opposition’s goaltender — usually a spot reserved for a forward.

“I mean, Chych’s a defenseman, right? So his entire career, he’s usually played somewhere up top on a power play,” Carbery said. “So when he’s finding himself in a lot of scenarios down by the net, down on the goal line, as good a player as he is, it’s still uncomfortable – it’s not like he’s played there his whole life.

“I think just getting both those guys running their own unit, having two balanced units that we can go to, and then also it’s about the accountability and riding the hot hands. If one looks great, [it’ll] probably start the next one, and then they start the next one, and then they start the next one. If it doesn’t look great, start the other unit. See if there’s some chemistry there or [if] they’ve got some jump that night.”

Ovechkin, the all-time NHL leader in power-play goals (327), took reps with both units, swapping in and out for Milano on the second. Carbery was asked again on Sunday whether his plans surrounding double-shifting Ovechkin have changed. The Caps captain has just one power-play goal this season.

“I think it’ll be a TBD,” Carbery said. “Just given situation, how the power plays are going. Has he gone up and down the ice? Has he just come off a shift where he’s going right onto a power play? All those things I take into consideration when considering whether he stays. Is there a stoppage in between where you can get a little bit of a breather? Is he going two minutes straight through? Those are the things.”

The primary emphasis from Carbery seems to be on better dispersing the team’s speed across the two units. According to NHL Edge, the Capitals spend just 53.2 percent of their power-play time in the offensive zone, which is the worst rate in the league.

Spreading the speed in the team’s lineup will likely make zone entries easier, letting the team get set up for more of the two minutes. The Capitals are also rumored to be exploring the trade market to add additional speed to their roster.

“There’s no doubt, skating is one of our Achilles heels as a team,” Carbery said. “It shows up on the power play. It’s not the end of the world, but to incorporate guys that can add the skating, the speed, the pace off the entry, and then also for puck recoveries of getting out of tight spaces, an ability to be able to skate, cut back, accelerate away from defenders — usually long, big defenders on the penalty kill — is definitely something that helps.”

The Capitals will see the first test of their new setups against the Blue Jackets, who own the 27th-ranked penalty kill in the league. However, Columbus is also one of the most disciplined teams in the league, spending the fourth-least amount of time shorthanded per game (4:08).

In the two teams’ first matchup this season on October 24, the Capitals went 2-for-5 on the power play in a 5-1 win. They have scored more than one power-play goal in just one other game since then, their 8-4 beatdown of the Montreal Canadiens this past Thursday.