Supporters insisted critics judge Neil Critchley after ten League One matches.
Blackpool have now won only four games - three against bottom half teams.
Two victories came over sides rooted in the relegation zone - Reading and Wigan.
Tests against upper table opponents - Lincoln, Wycombe and Derby - failed.
The Seasiders languish in 14th place, just above this weekend's rivals, Charlton.
Oxford, in a second automatic promotion spot, have already a nine-point advantage.
Even Bloomfield flop Appleton has led the Attics to three home triumphs in a row.
Critchley must prove able to muster at least a draw - or find himself replaced.
Sadler's unwillingness to invest enough in better new players has dented hopes.
But the coach's erratic selections and tactics produce inconsistent success.
Unless the club displays sustained quality,, forget a Championship return.
Blackpool have now won only four games - three against bottom half teams.
Two victories came over sides rooted in the relegation zone - Reading and Wigan.
Tests against upper table opponents - Lincoln, Wycombe and Derby - failed.
The Seasiders languish in 14th place, just above this weekend's rivals, Charlton.
Oxford, in a second automatic promotion spot, have already a nine-point advantage.
Even Bloomfield flop Appleton has led the Attics to three home triumphs in a row.
Critchley must prove able to muster at least a draw - or find himself replaced.
Sadler's unwillingness to invest enough in better new players has dented hopes.
But the coach's erratic selections and tactics produce inconsistent success.
Unless the club displays sustained quality,, forget a Championship return.