Vicente del Bosque refused to rule out the possibility of resigning after Spain were dumped out of the World Cup following a shock 2-0 defeat to Chile.
Goals from Eduardo Vargas and Charles Aranguiz condemned La Roja to a second successive defeat in Group B after last Friday's 5-1 mauling at the hands of a rampant Netherlands side last Friday.
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After the match Del Bosque was quick to praise Chile's "courageous" performance but was less forthcoming when asked about his own future or that of his team.
"I’d like to think about what happened and have some time to think things over," he told reporters. "The truth is we’ve been together for 24 or 25 days and we were training quite well.
"We had difficulties choosing the starting team because everyone was fit. But the second half against Netherlands and the first half against Chile were a problem.
"We started with a sluggish rhythm, we were too shy, not brave enough maybe and that’s a pity because I didn’t expect that.
"Chile played as expected. They stuck to their style, their physical style and they are very, very courageous.
"I think this team is good and fit but we’ll have to take the best decision for Spanish football, and that applies to my position as well."
But despite his disappointment, Del Bosque saw no need to apologise for his team's lacklustre display.
"I think we have shown character despite our fairly straightforward elimination," he added. "We have gone forward, but have been unsuccessful in front of goal.
"For that we have no apology. We have all made a big effort. We had good intentions but we lacked something. We lacked a spark in the game. For the first time we have been very meek."
Spain will face Australia in their final group game on Monday, with kick-off at 18:00CET.