VADUZ, Oct 13 (Reuters) - Tiny Liechtenstein have made impressive progress since their initial foray into international football less than 20 years ago, yet coach Hans-Peter Zaugg fears that after some promising results they may have hit a dead end. With a population of only 35,000, not enough to even half fill many European stadiums, they still managed to muster four points in the Euro 2012 qualifying competition and concede an average only slightly above two goals a game. ... More...