Here at RDS (Replacement Drummer Solutions) we recommend the following alternatives:

1)all band members to tap their feet
2)hire drummer with minimum age of 70 armed only with snare and brushes
3)hire doghouse bassist with excellent slapping technique
4) hire gorgeous female with tambourine (think Emmylou Harris circa 1975)

Question to ask prospective drummer - do you do rolls and paradiddles? (Correct answer is 'no' unless he's Jerry Allison.)