So Rutte and the cabinet minsters are not MPs, the government is entirely separate? Does the government still physically sit in parliament?In the Netherlands every party files a list of candidates with the election authority. The positions on the list are decided by the parties itself. For example, the party who won the last election will be list number 1, their party leader will be number 1 on that list and the rest of the candidates take the rest of the places on the list. Normally every party has so many prospective members that a good deal will not be elected because normally you can vote for each candidate. If that candidate has so many votes that she qualifies for a place in parliament, then someone else of the party will not be allowed in our version of the house of representatives.
Say party 1 has won 20 seats, then if no-one has enough preferential votes to win their seat outright, the party leader and the 19 people who are on the list on place 2 through 20 will have won a seat. But if say number 23 on the list is so popular that he/she has enough preferential votes to win a seat, then the last one on the list to normally get a seat will lose out because the party has a maximum of 20 seats to fill.
But if this party becomes part of the coalition government then 1 or more will become members of government, they will then no longer be part of the house of representatives because you cannot be both in government and a MP. So they will vacate their seats and say 8 MP's of that party will become part of the government, then their seats will be filled by the numbers 20 to 27 on their original list.
A lot of political parties have list-pushers, purely put on the list of electable figures to incite people to vote for them (like former party leaders, musicians, actors, writers, etc.) to push the vote for their party but those people will never win enough (and do not really want to be) sitting in parliament.
And every party constructs it's list of candidates in the same way.