The 36-year-old Stoudemire averaged 18.9 points and 7.8 rebounds per game during his career. He spent the beginning and bulk of his career with the Phoenix Suns before coming to New York as a free agent in 2010, the same year LeBron James and Chris Bosh signed with the Heat to form a super team with Dwyane Wade in Miami.
Stoudemire, who lacked the incredible leaping ability he had in Phoenix before microfracture surgery, still was very formidable. In five Knicks seasons, he averaged 17.3 points, 6.7 rebounds and made three playoff appearances. For beaten-down Knicks fans, the Stoudemire era looks even better in hindsight.

Stoudemire, a six-time All-Star, has most recently played for Tri State in the BIG3 and Hapoel Jerusalem. He has shown some flashes in BIG3, a once-a-week league, but the level of competition is nowhere near the caliber of the NBA.
As for Ellis, he hasn’t played in the league since the 2016-17 season. He played for 12 seasons with five teams — the Warriors, Raptors, Bucks, Mavericks and Pacers — and averaged 17.8 points and 4.6 assists during his career.
Though both players had good NBA careers, neither was known for their defensive prowess, and the modern fast-paced game doesn’t fit their skill sets, making a comeback for either highly unlikely.

https://nypost.com/2019/07/04/ex-knick-amare-stoudemire-wants-to-play-in-the-nba-again/

Nalod wrote:

I hope Amare can have a role on a championship team. Not with us. Don’t be surprised if he a net!

Can't defend the rim. Can't space the floor with a three point shot

If he had worked a functional three point shot relentlessly at the back half of his career, he'd still be playing now.

Players have to be willing to reinvent themselves later in their careers.

The trend towards three point shooting was pretty glaring for a very long time. Even back during NellieBall V1, you could see the roots of the way the modern game would eventually be played (Hardaway Sr as a pure attack guard and Manute Bol as the first Stretch 5 with Rod Higgins as a part time small ball long range gunning 5)

I know Don Nelson doesn't get a ton of love from Knicks fans because his tenure was so brutal, but he really did change the way the entire league operated. He was so ahead of his time. ( Attack Guards, Stretch 5, Hack A Shaq, mining the international market, Pushing volume 3 point shots, Hybrid Jumbo Wings, Small ball pivots, so many interesting things in a different era of play)