systems & teams - styles of play - suit some players more than others & the balance of both team & squad affects the ability, or not, of all players - it's just strikers, measured on goals they score are an easy target or sometimes easily found out to be lacking in an area of their game.
Britt - did great at Forest, however failed to deliver anything like his supposed ability in 4 years at Boro, he & his agent may think he's the same player & worth a bigger contract than he was on at Boro... I doubt few clubs will agree & I think it will be tough to find a club willing to front load a fat contract that he can sit on for another 4 years at their expense - find himself a club that plays two strikers up top & he may just find something like his long past form..
Fletcher - 25 & a career that is still floundering on take off - really needs to find himself a club where he starts, stays free of injury & puts some stats on his wiki. If he goes hunting big money he'll be unemployed in August & looking for trials.. possibly end up in Aus or maybe China. He needs to be playing & think possibly QPR, maybe one of the relegated teams (a mistake, as he'll be on the bench, though best chance of ££) or other London club..
Akpom - another 25 & needs to get his career up & running, back in the day these players would be playing non-league footy by now having failed - MASSIVLEY - to make the break through. I hope Boro can get some of what they paid for him back - ticks lots of boxes on FIFA - unfortunately unless he gets the next move right he could be packing boxes at Amazon by the time he's 30..
All of our soon to be ex-strikers have ability, they need to find #1 a team that plays a style of football that suits their game & be coming in as #1 striker, esp Fletch & Akpom.. they should put money way down their priority, a decent contract with some performance bonuses to boost their earnings -if - they deliver the goals, league position & cup run... show the clubs they are signing for they are there for the competition, not the contract..
As for players Boro need to bring in - more like Watmore..