Barnsley FC players were not fighting with the same intensity in the home draw with strugglers Plymouth Argyle

The Reds started brightly and took the lead through Alex Mowatt's stunning first-time strike on eight minutes. But Derek Adams' side hit back through Ruben Lameiras six minutes before half-time, just as full-back Daniel Pinillos was off the pitch receiving treatment for an injury.

'I think we started very good,' said Stendel. 'We played with very good options about the wingers and had chances.

'After the goal we stopped our game in the first-half. I don't understand the way we played. We were not defending. We gave Plymouth so many chances. Plymouth played a good away game but it's more our fault.

'We were not defending 100% after the first goal and it's not too easy to switch the attitude and we noticed that in the first-half.

'In the second half we spoke with the players. We had more ball-possession and chances. We could have won the game in the second half but it wasn't what we've shown in the past. It's very disappointing.' 

The Reds failed to gain any true momentum against the league's basement club and squandered several chances to regain the lead with the visitors also hitting the crossbar in the second half.

'I hope that the players understand what they want in this season,' continued Stendel. 'We can win every game but we need a 100 percent attitude in every game.

'It doesn't matter if it's first or last in the table, the players have to be fast to learn that we need them to be 100%..

'We played good in Fleetwood and then the bottom of the table come to us, we started very good and had chances. We played good and scored. I think from the outside you see at that moment, it's easy to win this game. That's a mistake. It's not normal in a football game. Every game is 90 minutes.

'We were not fighting the same and we were missing some concentration. We didn't have too much of the ball and didn't win second-balls.'

The head coach knows his players will have to perform even better as they visit second-placed Peterborough on Saturday.

'The next game in Peterborough is difficult and a very good opponent for the next game,' he added. 'We must switch the attitude to 100 percent and start for 90 minutes or 95 minutes or to the end of the game - not when we are 1-0 in front.'