Formula para detectar clientes cacho

clientes-cacho.php

<?php
$everything_is_easy = $_GET['everything_is_easy'];
$future_work_promises = $_GET['future_work_promises'];
$unrealistic_deadline = $_GET['unrealistic_deadline'];
$questioning_rates = $_GET['questioning_rates'];
$changed_agency = $_GET['changed_agency'];
$you_dont_get_it = $_GET['you_dont_get_it'];
$dissapearing = $_GET['dissapearing'];
$free_proofs = $_GET['free_proofs'];
$disorganized = $_GET['disorganized'];
$gut = $_GET['gut'];
$calculated_score = 0;
// eval

switch ($everything_is_easy) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($future_work_promises) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($unrealistic_deadline) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($questioning_rates) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($changed_agency) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($you_dont_get_it) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($dissapearing) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($free_proofs) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($disorganized) {
case 'true':
  $calculated_score = $calculated_score+2;
  break;
case 'false':
  $calculated_score = $calculated_score-1;
break;
}

switch ($gut) {
case 'dont-take-this-client':
  $calculated_score = $calculated_score+2;
  break;
case 'take-this-client':
  $calculated_score = $calculated_score-1;
break;
}

if ($calculated_score > 9) {
  echo "No se te ocurra";
}
elseif ($calculated_score > 6) {
  echo "Cliente cacho garantizado";
}
elseif ($calculated_score > 6) {
  echo "Muy probablemente un cliente cacho";
}
elseif ($calculated_score > 3) {
  echo "Probablemente un cliente cacho";
}
else {
  echo "Puedes tomar este cliente";
}
echo "\n";
echo "Puntaje Cacho:".$calculated_score;