But he insists his desire to do well at Rovers and his excitement at the project ahead was not diminished when Moore departed for Sheffield Wednesday last month.
Bostock’s YouTube channel ‘More Than A Player’ has documented his journey without a club after leaving French club Toulouse in September, with the most recent episode ending with him reporting for training at Cantley Park for the first time in January.
The former Tottenham Hotspur midfielder was excited by the interest Moore had shown in securing his services for Rovers and the feeling of being wanted was a big draw with other clubs also making contact over his availability.
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However, he insists he has no regrets over his decision to commit to Rovers on an 18 month deal and he fully behind Andy Butler who replaced Moore as manager following his departure.
“The position I was in before, there were no managers showing interest, it was more clubs,” Bostock told the Free Press.
“But Doncaster was the only club where the manager wanted to bring me in, so that was a huge attraction for me.
“He brought me to the club like he said he would and I played so games under him.
“He’s moved on now but that has gone. I’m grateful for it but the game goes on.
“We’ve got a huge opportunity together as a squad, as a club, under Andy Butler now.
“I’m really glad and grateful that he has shown faith in me to stick with me in midfield.
“You can see his passion on the training field as he’s trying to communicate what he wants to the guys.
“He’s got his own ideas as well which is great.
“Hopefully we can continue to gel under him.
“My passion will never change - particularly under a manager like Andy Butler.
“I’ve got a lot of respect for him, as a player but even more so as a manager.”
Bostock was among the substitutes for Monday’s defeat at Bristol Rovers but had started the two previous games under Butler after returning from injury.