From here:
http://www.rugbyleagueproject.org/teams/penrith-panthers/transfers.html
2010 - 0 players debut
2011 - 5 players debut (only Austin still remains at an NRL Club)
2012 - 7 players debut (Only Mansour and Ryan Simpkins remain at an NRL Club)
2013- 2 players debuy (Only Moylan is still playing)
2014 and 2015 were good years for debuts With 12 in total
2014 8 players came from other clubs. 2015 2 more came in.. which replaces the 10 that left in that time.
2016 - 6 came to the club. 5 debut. 16 left.
2017 - 4 Came to the club. 4 debut. 8 left
2018 - 2 came to the club. 6 debut. 11 left (counting Wallace)
33 players leaving opened up positions for those debutants to get a place..That is the big difference now.
2010 NYC Team had Moylan, Cook, Austin, Graham... So we had juniors just started using them better.