Speaking to RTÉ Sport, Dunphy says Spurs lacked quality options on the bench that could have made a difference in the Wembley defeat to Chelsea - describing Moussa Sissoko as "hopeless" - and can't see Pochettino's side improving on last year's second-place finish in the Premier League given their cautious financial approach.
The bigger pitch exposes players like Eric Dier and Victor Wanyama who simply can not do anything positive when they get on the ball.
"I think we need another keeper because we have Hugo Lloris and Michel Vorm. He's got a lot more to his game as well, he's got a great strike on him, keeps the ball moving all the time and is a fantastic player, it's a pleasure to play alongside him".
Pochettino can identify part of himself in Sanchez: a defender who left South America for Europe in his early twenties.
At White Hart Lane they could get away with that but at Wembley, with players like N'Golo Kante and Willian facing him, Wanyama didn't know what to do except pass the ball back or sideways and usually to Dier. Still awaiting Sanchez's forthcoming work permit, the club isn't sure if it will be approved in time for Sunday's match.
Dyche must decide whether to give recent signing Chris Wood a first start, although against a Spurs side who will have most of the ball and play a high line, the New Zealand global may have to bide his time before making his top-flight bow for his new club. First of all, it is to adapt.
The 21-year-old has been working with his new team-mates at Tottenham's Enfield training base since the move from Ajax, but was given a harsh lesson in the realities of English football by his own manager when they were competing to win a header as part of a drill. In your opinion, should Jose splash the cash to sign Danny if Spurs do opt to sell him? Yes, he is very welcome with the team-mates and he is one of us.
"I don't like to talk about money".
"I moved [to Europe] with my wife", he added.
Darren Anderton believes that Manchester United and Tottenham could be the two main contenders for the title this season. "And maybe some clubs can guarantee they can play more next season". It's true that Davinson is more competition for our centre-backs but it can only be good.
"No doubt, when the window finishes, Daniel Levy will try to work and make happy every single player of the club".