It is difficult to earn a spot in the NRL side, it is even harder to stay there.

That is the next step in the development of Storm's emerging talent according to Craig Bellamy.

Over the last six weeks the Club has showcased its wealth of depth with the likes of Jahrome Hughes, Brodie Croft, Cheyse Blair, Brandon Smith, Albert Vete, Patrick Kaufusi and Tui Kamikamica all stepping up to fill the void left by Storm's Origin stars.

Six wins from six has resulted in the most successful Origin period in Melbourne Storm history.

Given how pleasing the results and individual performances have been in recent time, it is easy to get excited by the talent on display throughout the playing list.

However the coach has now urged those emerging players to maintain that high standard if they are to become bona fide first graders.

"I think it is too early to be saying that to be quite honest," Craig Bellamy said.

"Some of our players have only been playing one or two games. You need to be able to do it week in and week out, that is the definition of real depth.

"Over the last few years we've played in a couple of Grand Finals but we've lost eight really good first graders in both of those years. Those younger guys who have come up, we've shown a lot of faith in them but at the same time they have repaid that faith.

"Through that Origin period they have done a really good job for us but to be regular first graders they need to be really consistent in Queensland Cup and doing it up there as well."