This is non-sense. There's no rule that says collectively bargained contracts can't include rewards or incentives for higher-performance. In fact, many do.
Look at any professional sports contract. Players usually get bonuses for hitting predetermined stat goals on the field. Look at any teacher contract. Teachers get bonuses for attaining higher education and certifications, or simply taking on leadership roles.
In this hypothetical are you also removing the salary cap? If anything he'd probably get more because I suspect that replacement-level players would be willing to play for less than the mandated minimum salary of about 1 million dollars.
Probably the same, maybe less. Professional sports players get paid on merit. What they do on the court directly translates into what a team is will to pay them.
Actually he would get paid much more. The NBA CBA has a "max contract" capped at 25% of the salary cap[1]. There are numerous players playing on essentially the same deal, even though there is clearly a big gap in talent. If you look at the list of salaries for the 21-22 season[2], Steph Curry is the highest paid player at $45.6M, which is only about 15% higher than the 10th highest paid player despite being significantly better.
[1] there are some other contract terms that allow for up to 35%, but those require a bunch of other non performance conditions to be met.
[2] http://www.espn.com/nba/salaries
Thats a good point, and I think in general I think using professional sports as an example either for or against unions is a bad faith argument because of the unique dynamics present.
Maybe that's what makes it a great example. It shows labor unions are extremely flexible tools that should be configured for the work force they're representing.
Maybe its all these specific arguments against unions, like "seniority based promotions make for incompetent leaders" and "high performance workers are disincentivized", that are actually the examples given in bad faith.
Look at any professional sports contract. Players usually get bonuses for hitting predetermined stat goals on the field. Look at any teacher contract. Teachers get bonuses for attaining higher education and certifications, or simply taking on leadership roles.