The Robins have only won once in their first four fixtures coming in the shape of a 44-18 victory over Widnes Vikings.
The latest defeat saw his team throw away a 20 point advantage and lose to lowly Salford City Reds 38-34.
Dobson speaking to the Hull Daily Mail said: “It’s still early in the season and I’m definitely disappointed, but there are signs that when we do put things right we are a hard side to stop.
“There were some pretty low times last season, but luckily we have plenty of time to put things right
“As a group we have to stay together and make sure we are very honest in our video sessions. If everyone concentrates on their own job and doing their own job right, we’ll be very hard to beat as we have some very good players in this team.”
Rovers host Warrington Wolves on Sunday and Dobson knows his side must improve if they are to get a win: “If we serve up what we served up at Salford, it’s going to be a long day. I’m pretty confident we won’t play like we did on Sunday though.
“It’s a case of players going away from the game plan. We need to stick to our roles in the team, complete our sets and chase our kicks well.”