The Warriors might have gotten themselves a massive upgrade at the four and the five.Newly acquired center/forward Kristaps Porzingis made his Warriors debut on Thursday in a loss to the visiting Boston Celtics, which seems to have impressed Golden State’s principal owner Joe Lacob.“He showed you a little bit about what he can do and why we got him,” Lacob told Tim Kawakami of The San Francisco Standard. “He’s always been one of my favorite players, to be honest, just in terms of his skill set, his size.”In his Warriors debut, Porzingis scored 12 points, making 5-of-9 shot attempts and 2 of 5 3-point attempts, and recorded one rebound, one assist, and one block in 17 minutes off the bench.With Porzingis’ size and length, Golden State trading for the 7-foot-3 forward addressed one of the areas it has been lacking for a few seasons.“You know, Mike Dunleavy and the guys always laugh because I’m always yelling for more size,” Lacob said.“And we finally got it. He’s 7-foot-3, so I’m happy with that. We’ve got two real 7-footers on the team now [along with Quinten Post]. I like what I...