Going forward:
Ovie is flawed (who isn't?) but there's no reason a successful team including in the PS cannot include him. One way to achieve this is by decreasing reliance on him without going full Dale. Something more balanced. And unless an incredible offer comes along, how many think that Ted would allow a trade? [Somewhat OT, but the "Trade Ovie" chant reminds me of a line George Carlin had in his mid-60s "Biff Burns" sportscast that went something like, "Today, the San Francisco Giants traded outfielder Willie Mays to the New York Mets for the entire Mets team." The real thing did not happen until the early 70s, and it didn't involve the entire Mets team.]
otoh, Nicky sounds like trade bait. He's good but all too often becomes invisible in the post season. The Caps have Kuzy, who's proven effective with Ovie. The team would still need strength down the middle, but can find a cheaper and younger 2C.
And Vegas/GMGM is the clear beneficiary of new expansion rules - teams protecting 1G-3D-7F instead of 1-5-9 back in the 2000 draft; and only one team selecting instead of two. Just think how much worse the pool would have been if the 2000 provisions had applied last year.