Paul Robinson admits England have yet to prove they are a world-class team, but feels Steve McClaren has the correct blend in his squad to succeed.
The knives are out for McClaren following a draw with FYR Macedonia and defeat to Croatia.
Slaven Bilic suggested England have great individuals but lack a team ethic and Robinson admits the Croatian coach's points are valid.
"We are yet to prove we are great as a team, we are a new team and we have got a lot to prove," Robinson told Sky Sports News.
"But in the coming weeks and months I am sure we will prove we are a good team."
It has been suggested that McClaren needs to overhaul his squad, but Robinson feels the Three Lions chief already has the best available to him.
"Where are you going to get the players from?" he countered. "Look at the players in the squad, we have got the strongest 23 players in the country.
"If you want a total overhaul of players, I can't see where they are going to come from.
"The squad we have is the best in the country, it will take time but I am certain we will qualify for the European Championship and go from strength to strength."
England face a fight to qualify from Euro 2008 Group E, but Robinson feels they will do enough to book their place in Austria & Switzerland.
"It is disappointing, England never seem to do things the easy way," he admitted. "But saying that we are still top of the group and there is a long way to go and I am confident we are going to qualify."