Ian Holloway took the former Dundee United midfielder to Bloomfield Road last summer. He left for Crystal Palace in November and his successor, Michael Appleton, lasted 65 days before joining Blackburn.
Steve Thompson then took over but Roberton's entire Blackpool career consisted of an hour of football against Cardiff in September.
The 27-year-old, who signed a two-and-a-half year deal at Easter Road this week and is likely to make his debut away to Ross County tonight, said: "I think we had 10 central midfielders.
"When Steve Thompson took over, he told me he understood my position and would let me leave if I wanted to. I did not want to sit there and collect money for nothing. To go from the position I was at Blackpool to potentially playing in the SPL tonight is something I am really excited about.
"I have played 13 or 14 reserve games. If the manager asks me to play I'll give it my all, whether it is from the start or the bench. I just want to get some proper football in again."
Andre Hainault, the 32-times capped Canadian internationalist, completed his move to Ross County yesterday and while the defender has tested his powers against the class of Carlos Tevez and David Beckham for club and country, he believes Scotland's top flight will present a new challenge.
The 26-year-old's last club was Houston Dynamo – he spent four years with the MLS side – and a team-mate there. a former Rangers and Ross County youngster Adam Moffat, played a big part persuading him to accept County's advances.
Expected to make his debut against Hearts on Saturday, Hainault said: "I could have stayed in MLS and made more in wages, but I wanted a change. I don't play the game for money. I just want a new challenge and new experiences.
"The SPL will be different but I know there is a lot of quality here. It is a fast pace.Houston wasn't the most beautiful city in the world and didn't have much history or culture. Here, we live in a nice little town and the people have been great.
Derek Adams, the County manager, has signed four players this month but hopes to add to his squad further before tomorrow's transfer deadline.
He said: "We're delighted with what we've done, but would like to add one – or maybe two – more."
County are confident that tonight's match will go ahead after they spent "tens of thousands of pounds" on emergency pitch repairs to rectify a drainage problem.