The Wings management doesn't think the vets are "washed up," though. Just the fans do. There seems to be a perception that as soon as a prospect has a good year in the AHL, he should be brought up and plugged in to the lineup and the vet should be cast away. But, it's also hard to build team continuity and culture that way and the vet, in a lot of the cases, is still the better player.
They prefer established players whose production is relatively easy to predict and to bring along the prospects slowly. They play on the lower lines first against the other teams worst players, learn from the established vets on the team about how to conduct themselves on and off the ice, and they are not pressured into a large role that they may not be able to take on right away. Even Darstuk and Zetterberg had variations of that upbringing- although they were able to get more ice time bc of their elite ability. But, Zetterberg didn't even come over and play until he was already an Olympian. If that isn't a textbook case of the "overripe philosophy" then I don't know what is. On a team like the Oilers, he would have come over a year or two earlier than he would have here, played top line minutes and been the focal point of the team almost immediately and wouldn't have had the ability to learn from the Yzerman's, Shannahans, Lidstrom's, etc. Would he still be the same player today if he didn't have that slow, steady development? Probably, but who knows?
Their general approach is a mixture of what is best for the prospect and what is best for the team in the short and long term to be able to keep a consistent string of success year after year. A lot of what is discussed in this thread seems overly focused on what is good for the prospect and assumes that just giving them a bunch of playing time at the first sign they are ready for it is the best course of action. But, there are a lot of variables that go into that both at the individual and team level. Not to mention, it's been somewhat ironic to watch the board's reaction to Brian lashoff's playing time. Due to injuries and weakening depth after losing vets like Lidstrom, Rafalski and Stuart, he's been spoon fed minutes he's not ready for. It only took a few games before posters wanted him benched in favor of older, more experienced players.
Regardless, I see nothing wrong with how they are handling Tatar. He's 22 yrs old, playing 12 minutes a night and they carved out a role he's been successful at and have put him in a position to succeed. Given the injury situation and how he's played thus far, he'll end up playing on the team the majority of the season in a pretty decent sized role before he gets added responsibilities next season.