KARL Robinson has been warned results must improve if he is to remain head coach of Oxford United.

The U’s have lost six out of their last seven games in Sky Bet League One, and hover just six points above the relegation zone.

United chief executive Tim Williams was quizzed on Robinson’s future during BBC Radio Oxford’s Five Minute Fans Forum.

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Asked why Robinson was still in charge of the club, Williams said: “It’s a very straightforward question without a very straightforward answer.

“Like I said a few weeks ago, we’re not blind to this, we see the results and we are underachieving significantly.

“The pressure and expectation on us all is massive, and it increases game by game.

“Karl’s the manager, he picks the team and assembles the squad, and has therefore ultimate responsibility for those results and our league position.

“He knows that, and he knows the pressure and expectation that comes with that.

“He knows we can’t keep going the way we are, and so do the players and all the staff around them.

“All I can say is results have to improve, it’s as simple as that.”

Williams ruled out financial reasons being a stumbling block in making decisions on the future of Robinson, and reiterated that the board is committed to making the U’s a Championship club.

On who would make a final decision on managerial changes, Williams said: “We’re run as a business with a proper structure and a proper hierarchy of decision-making.

“A decision as critically important as this will be made ultimately by the board but with input from a wider range of individuals within the club, all with the correct level of expertise, experience and knowledge to make such a decision.”

Williams added: “We care immensely, this is our livelihood and we care about what we are doing on the pitch and about every single person paying their hard-earned money to come and watch what have been really poor performances.

“We don’t just go home on a Saturday evening after a loss and get on with our lives.

“When I hear and see reactions such as that we’ve taken our eye off the ball, that we don’t care or we’re letting the club go into some sort of freefall, it’s simply wrong.”