The NBA has changed over the past several seasons. The league is now dominated by guards and the Washington Wizards are lucky enough to have the best back court in the Eastern Conference. Besides a few exceptions, big men are rarely the focal point of a team’s offense.

Kevin Seraphin was arguably the best offensive big man on the Washington Wizards’ roster for the past few seasons.

His ability to score in the post and his improved jump shot made him a legitimate threat on the offensive end of the floor. After the Wizards signed multiple bigs in the summer, Seraphin still found a way to earn minutes during training camp as he ultimately took DeJuan Blair‘s spot in the rotation.

Even though Seraphin was a threat offensively, he’s a black hole and often kills momentum when he gets the ball inside. His scoring was needed off the bench, but this off-season, the Wizards decided to get that scoring elsewhere.

Ernie Grunfeld signed several wing players that will fill the scoring void left by Seraphin, who decided to join the New York Knicks on a one-year deal.

Seraphin was looking to get a big payday, but as the market dried up, teams weren’t calling. He gambled, took a one-year deal with the lowly Knicks with hopes of getting that big payday next summer.

Washington will miss Seraphin’s presence, but they should be fine with the current front court rotation. The team will play more small-ball this season, which will give Nene a chance to play some backup minutes at the five. Kris Humphries and Blair will also get some playing time at the position.

Surprisingly, Seraphin decided to sign with the Knicks even though they already had several established bigs on their roster. Prior to becoming an unrestricted free agent, Seraphin talked about wanting to play for a team that will give him consistent minutes.

The Knicks have Robin Lopez, Kristaps Porzingis, Kyle O’Quinn and Derrick Williams — all of whom are presumably ahead of Seraphin in the rotation.

Still, during media day with the Knicks, Seraphin spoke about why he decided to leave the nation’s capital:

“It’s just like I’ve been there for five years, I know how it goes,’’ Seraphin told The Post after the Knicks’ first practice at West Point. “I didn’t want to be in the same situation as last year where I don’t play all the time and I never know. Sometimes I feel I do everything right and I don’t get to play all the time. At one point, I was like I needed somewhere I can play.’’

Again: I’m not sure why Seraphin thinks he’s going to a place where he’ll get regular minutes. To put it bluntly, he’s too flawed to get consistent minutes on a winning team.

The Knicks don’t have the makings of a playoff team, but they seem to want their team to be competitive this season. Is he better than rookie Porzingis or O’Quinn? The former needs playing time to develop and the latter is better at virtually everything.

Was Seraphin underappreciated in Washington? He believes so and he probably was. But, players like Seraphin are always going to be underappreciated. Big men don’t get the love they deserve. They often have to do the dirty work and the guards will continue to get the recognition.

It’ll be weird to see Seraphin in a Knicks jersey, but we’ll probably forget that he even played for the team once the season starts. Good luck, Snakey. I really hope you get consistent minutes in New York — the Big Apple deserves Serahooks forever.