I hear what you're saying, but I don't think Pau plays with no effort or no confidence. I don't think he mentally checks out like Bynum. For example, even though his shot was MIA last night, he didn't blow off huddles. He was in there. He was also trying to engage Bynum in talking on the bench (Bynum looked disinterested). His struggles last year were partially due to the same reasons - Phil decided (or was pressured to) start both Pau and Bynum midway last season. Pau's role shrunk. And Pau is a guy that needs and SHOULD get touches, not to keep him happy, but because he's the best passing big man in the game, it helps our offense (which sucks right now).
All things considered, I thought Pau was playing OK for most of the series except he struggled Game 5 and couldn't hit a shot Game 6. But he can't contribute more because Mike Brown's offense is setting up Bynum or Kobe. And he's matched up against Faried at the other end. I don't know, it's a tough position to be in offensively (be a spot up shooter) and defensively (chase a guy he has no chance of catching).
But yeah, I think he can play harder, and I think he can demand the ball more, and be less accommodating to his coaches and teammates. I think he could be more physical as always, but it's hard to be physical when you're forced to space the floor on offense, and running after a small guy on defense. I guess he could try to flagrantly foul or something to discourage Faried, but then again, Kobe tried that

and it didn't work.
But you bring a good point about his salary and trades. He does make way too much money for how we're using him.
I do think plenty of teams recognize his value and his changing situation on the Lakers with Bynum's emergence. Obviously, Houston loves him, they loved him after last year's sweep against Dallas, I'd bet they'll love him this year too. Daryl Morey knows what Pau can do.
Pau's game is really rare. Skills are very rare. It's just really hard to find somebody with his kind of talent and his size. I mean, look around the league...every power forward/center has his problems.
There is no Shaq.
I would say look at the power forward alternatives for Pau. I don't know, I could think of maybe a handful of PF I'd take above him individual. And maybe only a couple for the Lakers, specifically.
Pau is a bit soft. But he's a good teammate. He's not relentless. But he's very unselfish. There's nothing cancerous about him. There are good sides to his bad sides. He's just not an ideal player, but he is a great player, a world class player, whose game we are not maximizing at all. I mean, he was a huge part of why we won 2 rings in the past few years. He and Kobe. Bynum was not a major part of those championships. Pau is not Duncan, he's not Shaq, he's not KG, but he's Pau, a unique, great player.
But the Lakers decided to build around Bynum, because they believe Bynum is the next Shaq,Wilt, Kareem. Take that for what you will. I disagree with the Lakers about Bynum. I think the Lakers should still build around Kobe and Pau because they naturally play well together, their games will age gracefully, they are good teammates, they have proven they can win championships. I would have placed a complementary frontcourt player next to Pau - not a replacement. I think in today's league, Pau should play center, and he should be paired with a high energy defensive power forward, because that's where the league is at today. A guy like Serge Ibaka, a guy like Kenneth Faried.
I'm not sure what you guys are expecting. His offensive game is being held back and defensively he's put in a tough spot. I do expect him to play better (1-11 was an outlier), harder, but how can anybody expect a huge change in his game? As long as Mike Brown has Pau set up as a floor spacer, and as long as Pau has to chase Faried, it's going to be a tough series for Pau to make a huge impact.
“OH! Caruso parachutes in! You cannot stop him - you can only hope to contain him!” -Kevin Harlan, LAL-GSW 4/4/19