Former MK Dons midfielder Keith Andrews is to take up a full-time coaching role with the club this season.
Midfielder Gary Deegan has signed a new one-year deal at Southend.
Montenegro star Stevan Jovetic admits he would be tempted by a move to England.
As Jovetic gets ready to face England for his country on Tuesday night, he has reiterated that the Premier League is a destination that appeals to him.
"It sure is nice when you are interesting big clubs like Arsenal and Manchester City," he told the Daily Star.
"It feels good because the English game currently has probably the strongest league in the world. I'm very comfortable in Italy but the Premier League is at the top of the football world - and perhaps the best.
"We will see what happens in the future."
Jovetic is already a superstar in his native Montenegro, and he insists he loves playing for his country.
"There is no pressure on me," he said.
"On the contrary, I love these big games and they motivate me all the more to do well.
"I don't believe it will affect my game in a bad way at all."