Sehwag wouldn't be doing any better if he were playing in England at the minute.
Pakistan would be the best team in the world if Younis Khan & Mohammad Yousuf were in the team. Would give their batting some solidarity and Umar Akmal would probably score big runs if he were coming in behind them instead of Ali, Amin and Malik which has taken a massive toll on his batting.
All Pakistan need to do is get 300 runs in their first innings and no team will beat them if they continue to play all of their home matches in England with their attack (Aamer, Asif and Gul). Their bowling attack is dominating even though their batting is doing them no favours, so if they get their opposition under some pressure then things could get very ugly for the opposition.
Only Morgan's century in the first Test saved England.