Jamie Peacock offered his resignation to Hull KR owner Neil Hudgell after the Million Pound loss but it was rejected.
Peacock joined the Robins as the club’s head of rugby late last year. He came out of retirement to play for Hull KR in the Middle 8s.
“Saturday was a devastating day for me and the club,” Peacock said in a statement issued by the club.
“To be in a dressing room with grown men, wives and children crying is not what sport is about.
“To be part of a club with such loyal, passionate support is very humbling and the reaction after such a defeat will stay with me for life.
“The messages from within the club and across the game made me feel very lucky to be part of the RL community.
“I gave everything I could to the club this year and came up short. I always want to be accountable for my actions in life and offered my resignation to Neil after the game.
“This was turned down which means I can continue my journey with this great club.
“While relegation hurts, it allows the club to stop just trying to change the branches and begin a full root and branch overhaul of the rugby department, building rock solid foundations that will enable this club to rise again and become a force within the game.
“Up the Robins. JP.”
In a statement Hull KR chairman Hudgell said: “Thank for you for all the kind messages, theya re very humbling.
“I am extremely proud of the dignified manner of our people in defeat.
“It’s what makes our proud club.
“I take full responsibility for where we currently sit, and will take time for some quite reflection whilst remotions run high.
“It is vital we all stick together, stand by the club and give it the best shot possible to bounce straight back in 2017.
“Rally around the Robins.”