Here are raw stats for 2011, 2012 and 2013 of player squads. I am drawing no conclusion here.
2011 - Number of players who played every game
Parramatta - 5
Canterbury, Brisbane, Tigers - 4
Souths, Manly, Cronulla, Nth Qld, Warriors, Canberra - 3
Roosters, Gold Coast - 2
Melbourne, Newcastle, Penrith, Dragons - 1
2012 - Number of players who played every game
Canterbury, Warriors - 6
Roosters, Souths, Manly, Nth Qld, Brisbane - 4
Melbourne, Newcastle, Dragons, Tigers - 3
Canberra, Parramatta - 2
Cronulla, Gold Coast, Penrith - 1
2013 - Number of players who played every game
Canterbury - 6
Warriors, Penrith - 4
Roosters, Brisbane, Dragons, Parramatta - 3
Cronulla, Souths, Manly, Newcastle, Nth Qld, Canberra - 2
Melbourne, Gold Coast, Tigers - 1
2011 - Number of players who played 20 games or more
Dragons, Manly - 15
Warriors, Nth Qld - 13
Souths, Melbourne, Tigers - 12
Penrith, Parramatta - 11
Brisbane, Newcastle - 10
Canterbury, Roosters, Cronulla - 9
Canberra - 8
Gold Coast - 7
2012 - Number of players who played 20 games or more
Souths, Melbourne, Brisbane - 14
Manly, Canterbury, Canberra - 13
Nth Qld - 12
Warriors, Tigers, Cronulla - 11
Dragons, Parramatta, Newcastle, Gold Coast - 10
Roosters - 9
Penrith - 8
2013 - Number of players who played 20 games or more
Roosters - 17
Cronulla - 14
Souths, Melbourne, Manly - 13
Warriors - 12
Centerbury, Newcastle - 11
Brisbane, Nth Qld, Dragons - 10
Canberra, Penrith - 9
Parramatta, Gold Coast - 8
Tigers - 5
2011 - Number of players who played less than 10 games
Manly - 4
Melbourne - 6
Canberra, Souths - 7
Brisbane - 8
Dragons, Warriors - 9
Cronulla - 10
Tigers, Penrith, Nth Qld, Canterbury, Roosters - 11
Gold Coast, Newcastle - 14
Parramatta - 15
2012 - Number of players who played less than 10 games
Manly - 4
Melbourne, Souths, Cronulla - 5
Nth Qld, Canterbury - 7
Canberra, Parramatta - 8
Dragons, Tigers - 9
Roosters, Gold Coast - 10
Brisbane, Penrith, Newcastle - 11
Warriors - 12
2013 - Number of players who played less than 10 games
Roosters - 6
Souths, Canterbury, Brisbane - 7
Manly, Melbourne, Newcastle - 8
Warriors - 9
Cronulla, Dragons, Gold Coast - 10
Nth Qld, Penrith - 11
Canberra - 12
Parramatta - 13
Tigers - 15