WOTC - Should ministers continue to be MPs?

I asked this question in the Wisdom of the Crowd:

Should ministers continue to be MPs?

Here are the responses: (47 Votes)

32 % - They should resign as MP and focus on their jobs as ministers. They can appoint another person to be the MP.
28 % - They should continue to be MP to understand the views of the people.
28 % - They should resign as MP and a by-election be held to appoint a replacement.
13 % - Ministers should be appointed from people who are not MPs.

See the pie chart at: 
http://www.wisdomofthecrowd.sg/chart.aspx?ID=1163