The young halfback was thrown in at the deep end last year, making 22 appearance for Rovers due to Terry Campese’s injury problems and then the internal suspension of Albert Kelly.
In those games, Marsh showed a promising amount of quality for KR, but his lack of experience was also evident on occasions.
But relegation to the Championship will result in the 21-year-old getting the game time he needs at halfback. In doing so, Marsh will still be playing at a competitive level in the second-tier, but it will also present him with more opportunities to express himself in a top-end team.
Playing with Kelly or Campese, Marsh was second in command, but at Championship level he will have more authority and responsibility, which could be pivotal in his development.
He has the quality to be a shining light in the Championship, and it would do his career plenty of good.
When the outside back joined the Robins, he probably thought his Championship days were behind him.
However, Shaw will taste life in the second-tier yet again after committing to the cause.
An ACL injury during Easter meant the former Bradford player managed only seven Super League appearances, in which time he showed that he had plenty of talent.
While dropping back down a division won’t have been in the script, Shaw can now establish himself as a key component in Rovers’ squad, and he can also benefit from the guidance of a highly experienced coach in Tim Sheens.
Beyond that, playing in a dominant team can only help Shaw’s confidence after a major injury.
One of Rovers’ new signings, Clark is preparing for a third year in the Championship with a third different club following spells at Doncaster and Bradford.
Clark was a revelation at both, and now he can do the same at Hull Kingston Rovers.
Still only 23, Clark has time on his side, and will get a great deal from another Championship stint, but this time in a dominant team.
Clark can still develop physically, and having the opportunity to do that for another year means he can be a big hit when he moves to Super League, with or without Hull KR.