Niasse joined us in January. He'd apparently played in Russia until December, so he'd missed at most a few weeks. How long exactly does it take for a professional sportsman to regain fitness? Far from being "forced into the first team" Niasse didn't even appear on the bench until late February, when he had five minutes or so against a weakened Bournemouth team with us 2 - 0 up. A handful more substitute appearances followed, mostly of a few minutes' duration, before making his full debut at the end of April. In these admittedly brief appearances, Niasse has shown absolutely nothing to justify the huge fee he cost.
So, to sum up; Martinez spent a fortune on a player who was so drastically unfit that it would take months to get him to speed, that is, so unfit it would have precluded him passing a medical; or one who just doesn't have it in him to play football at Premier League level.
4th December 2015 played his last game for lokomotiv Moscow - he scored in a 2-2 draw at home to Ural Oblast
1st February 2016 (if ever a signing screamed of DESPERATE its one who is signed on the last day of the window for a huge fee) - he signed for everton fc
non football playing time = 8 weeks + 3 days
on top of that he is joining a much more competitive league, much higher tempo of play and what many consider one of the hardest leagues to join and get accustomed to.
he made his first appearance against Bournemouth on 20th February 2016 - 20 days after he signed
now are you telling me that he was fully fit and 100% ready for the prem in the space of 20 days - time in which he would have had to sort out his accommodation, his surroundings, his new team mates etc.
I am not going to spew hate on a player when the blame rests solely on Martinez
I believe under koeman he will be a different and much improved player because he will have now had time to adjust and adapt and have a full pre-season behind him