You must feel the same way about your receiving corps, 37 year old Mason and 34 year old Burress who hasn't played since 08, your 40 year old backup QB and Lady Tomlinson.
The Jets had several critical FA's this past off-season, they weren't going to re-sign every player, the cap and new CBA wasn't going to allow it, so they did a lot in locking up the young core of their team, locking up players like Holmes, Cromartie, Harris, Mangold, and Ferguson. They brought back a quality player in Eric Smith, resigned their starting RT that played behind Woody last year in the playoffs and played well.
Edwards was a question mark due to his off-the field issues, he turned off a lot of his teammates because of the way he acted and was considered selfish, the Jets weren't going to give both players big contracts, and while they probably wanted Edwards back initially, I think over time, because the team felt chemistry was more important, they didn't want to bring back Edwards who had become somewhat of a cancer.
In Burress, they are getting a player who is highly motivated, who has provided evidence of his physical conditioning before he signed, and a player the team visited with before he went to prison, so there was a connection there. There is no questioning his talent, but it will take a couple of weeks for him to get acclimated in the Jets system and his legs under him as he returns to football. IMO, the good thing with this player and his ability is that he's a big receiver who doesn't rely on his legs or his speed, even though he is a big WR that has good speed and because of his size and stride, is always a match-up nightmare. He's flashed some of that already in the pre-season. He is a player whose career can probably be extended a couple of years because he's been out of football, sort of like Mike Vick, these players are refreshed, and are healthy with the time off, once they are in football shape, they appear to be bouncing back nicely, Vick proved this last year. His signing is no different than the Pats signing Ocho.
In Mason, we are talking about a slot WR, who will be our #3, and will rotate with Plax on the outside. This is a player who plays well despite his age, he was a starter last year, and still put up good production. Ravens fans were not happy that he didn't re-sign with the Ravens, considering the role he will be in, it's a solid pick-up and replacement for Cotchery, who was coming off of a back injury and surgery, and who didn't want to be a #3 WR, but his health was a big question mark, and his ability is easily replacable.
The Jets have some young talent in Kerley and now Gilyard who could become fixtures along with Holmes in the future, but in Burress and Mason, they are filling roles, Mason will probably only be with the team for this season.
Brunell is strictly here as Sanchez' caddy, and he's been a major help to his career and an influence to him on and off the field.
In LT, he started last year, and regained his productivity for the most part, he was an effective player last year and in the playoffs, he's still just 32, and is now a 3rd down back, the Jets have a lot of young talent at RB along side LT, not sure what your point is here...