Indicate the order in which Frederick Taylor's four basic steps of scientific management should be performed in order to optimize employee productivity.

$\backslash$table$[[$Action$,$Step $1$ Step $2$ Step $3$ Step $4],[$Supervise employees to make sure they follow the prescribed methods for performing their jobs.,$],[$Scientifically select employees and then train them to do the job as described.,$],[$Continue to plan the work, but use workers to get the work done.,$],[$Develop a science for each element of the job to replace old rule$-$of$-$thumb methods.,$]]$