info on Mark Parent:
Former backup catcher for 7 different MLB teams including the Tigers and the Cubs.
After his playing career ended, he managed one year (2000) in the Mariners system, single-A Lancaster JetHawks, and was named manager of the year in the California League after his team went 89-51 to end up in 1st place in the regular season but didn't win the post-season championship.
After a four year absence from the field, he started managing again in 2005. This time in the independent Golden Baseball League where he managed the Chico Outlaws for three seasons. Won the championship in year 3 then retired again from pro ball. Took two years off then joined the Phillies system as the manager of the Lakewood BlueClaws, a Single-A team in the South Atlantic League. Lakewood won both halves of their season and went on to win the SAL Championship series.
He was then promoted to manage the 2011 Reading Phillies (Double-A franchise) who finished with the 5th best record in the Eastern League (74-68) which put them in 2nd place in their division. They went on to lose in the semi-finals of their playoffs.
http://republicanherald.com/sports/parent-fits-into-phillies-winning-mentality-1.1094353http://www.baseball-reference.com/players/p/parenma01.shtmlhttp://en.wikipedia.org/wiki/Mark_Parent_%28baseball%29----
As far as I can find, Mark Parent never played with Robin Ventura at any level. Nor were they ever in the same organization together. The only connection I see is that they had the same agent (John Boggs).