The team today is primarily players on a PTO, players intended for the AHL, and a few players who will be reassigned to juniors, but who get this game as a bit of a reward for their first/second round draft position in the most recent draft. Jones was probably sent as part of his recovery after missing almost all of last year.
There is a requirement that at least eight players in an NHL exhibition must be "veterans". The definition of veteran is rather loose, as it includes first round draft choices from the most recent draft:
15.4 Exhibition Games.
(c) A Club shall be permitted to dress a minimum of eight (8) veterans for any Exhibition Game. For purposes of this Section 15.4(c), a veteran shall constitute either:
(1) a forward or defenseman who played in thirty (30) NHL Games during the previous season,
(2) a goaltender who either dressed in fifty (50) or more NHL Games or played in thirty (30) or more NHL Games in the previous season,
(3) a first round draft choice from the most recent year's Entry Draft, or
(4) any Player who has played one-hundred (100) or more career NHL Games.