Hey mate,
I've read an article related to this subject before afew days that explains the whole thing saying that EPL is composed of consecutive eras...
Read it here:
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Decline and fall of English footballing empires
All good things come to an end Are United and Arsenal declining like the giants of the past?
The Premiership lived similar periods of time that's controled by only one club, and here are the deatails:
Leeds United 1968-1974
What they achieved Twice champions (three times runners-up), once FA Cup winners in a six-season period.
Then what Did not finish in the top three until 1992 when they won last First Division title before creation of the Premiership.
Liverpool 1975-1990
What they achieved 10-times champions (four times runners-up); twice FA Cup winners and European champions on four occasions (1977, 1978, 1981 and 1984) in 15-year period.
Then what Have not won a championship since 1990, twice FA Cup winners.
Everton 1983-87
What they achieved Twice champions (once runners-up) and once FA Cup winners in four-year period. Also won the European Cup-Winners' Cup.
Then what Have not finished in top three since. One FA Cup win over 10 years ago.
Manchester United 1992-2003
What they achieved Eight times champions (and twice runners-up), three times FA Cup winners and European champions once (1999).
Then what Finished third in the last two seasons, won FA Cup in 2004.
Arsenal 1997-2004
What they achieved Three times champions (and four times runners-up) and three times FA Cup winners over a seven-year period.
Then finished second and won FA Cup.
Chelsea 2005-??