When Tyreke and Cousins are 25 and 24, respectively, Lebron will be 30, Wade will be 33, and Kobe will be 36. By the time Tyreke and Cousins are entering their prime, the othr guys will be on the downside, and will have been for a year or two. Lebron will only be 30, but most guys who came out of highschool don't do well in their 30's. Just too much mileage. But I'm not about to attempt to project how good Lebron will be in his early 30's.
If Tyreke and Cousins become as good as everyone thinks they can, and Omri, Donte, and Whiteside develop, and we add more pieces, we'll be in the conversation. IMO, it's way too early to say anything else. Injuries, trades, and guys like Durant will all come into play to. But I know one thing. The formula for a championship starts with a dominant big man, and an allstar guard that can get his shot when needed. We have that, or will down the road as these two mature. We also have some very talented young players who can develop into a great supporting cast in 3-5 years.
But hey, to be the best you have to beat the best, right? I'm not worried. Will Tyreke bring a championship to Sac? I don't know. Who does. But he'll get a chance, and probably more than one. Unless something changes, Lebron won't have a Cousins type center to throw the ball into, ever. Neither will Durant.
And a side note. All bigs Lebron might pair himself with, such Amare, Bosh(likely), or Boozer, I'm assuming Dirk isn't in the coversation, but IMO Cousins will be more dominant than any of them. None of those guys are a Duncan, Gasol, or Dirk, who IMO are the best pf's in the league. None are dominant. None play defense. So anyone Lebron will pair himself with will of course be a verydangerous combo, but I trully believe and Tyreke/Cousins combo could be just as much of a threat down the road.