Goodwillie begins Dundee Utd rehabilitation with goal
Dundee United striker David Goodwillie ended a troubled week by scoring the only goal against Hamilton.
The 21-year-old was dropped to the bench after spending more than 24 hours in the police cells following his midweek arrest.
The Scotland Under-21 striker was released without charge on Thursday after being arrested over an alleged disturbance in Glasgow city centre in the early hours of Wednesday morning.
Houston said: "He has talent. He is as good as anyone in the league as far as I'm concerned. The world is his oyster if he starts to concentrate solely on football.
"He has got to screw on the head and try to take on board what I and previous managers have tried to tell him. We hope the penny drops.
"What I can make sure of is that it becomes very, very difficult for him to go out on a Tuesday night."
Houston's team selection was heavily affected by midweek events which involved four of his players.
Houston said: "I have been asked if it was a disciplinary thing him (Goodwillie) not playing.
"I believe players should prepare properly from Monday to Friday. Unfortunately we had four young players who didn't prepare properly.
"They have been disciplined and they will be disciplined more on Monday or Tuesday, financially by the chairman.
"I have learned a lot from this week and hopefully they will too after I spoke to them individually."