Wrong order of effects

increase_performance_attempt.scala

import scala.concurrent.ExecutionContext.global

val af = fetchUserInfoService(userId)
val bf = simpleDbLookups   
val cf = expensiveDbLookups
val df = dbWriteOperations
val ef = expensiveCpuOperations

for {
  a <- af
  b <- bf   
  c <- cf
  d <- df
  e <- ef
} yield result