Midfield rookie conundrum

[n4cr123]

I am going 3 premo 3 rookie option this ear, however this leaves me with an issue...
My rookies are coniglio, shiel, McDonald, Clifton and magnar.....
Should I start with 3 gws rookies and hope I don miss out on a massive magnar score or...
Start 2 gws rookies and magnar and emergency a gas rookie incase he doesn't play... Thoughts?