Spurs have struggled in front of goal in the Barclays Premier League this term, scoring just nine times in 10 games, despite climbing to fourth in the table.
Former Arsenal and Manchester City forward Adebayor has watched this in frustration, having been overlooked by manager Andre Villas-Boas so far this season.
In the meantime £26million summer signing Soldado is yet to fire, having scored just once from open play in the Premier League.
Debate over the forward line has intensified after Sunday's goalless draw at Everton - a day in which Adebayor also chose to speak out about his dissatisfaction.
"He is a fantastic player," said Walker of Adebayor. "He trains really hard.
"It's not up to me to decide whether he plays or not, that's a decision for the manager.
"But we're fully behind him and the manager so whatever team he picks, I'm sure he'll do well.
"You don't play for Arsenal, Man City and then Real Madrid if you're not a decent player."
Soldado rounded off a good team move to score in the 2-0 win at Aston Villa a fortnight ago but his other three Premier League goals have come from the penalty spot.
The 28-year-old arrived at White Hart Lane with a good reputation from Valencia and Walker expects him to come good.
Walker said: "It's not probably falling the way he would like, just scoring from the penalty spot.
"They're goals but probably not what he wants goals to be like.
"But he works hard in training and I feel his performances on the field are going to bring goals.
"In training he is on fire, but it's not falling for him in the games.
"It will definitely come, though. He's a fantastic player, a Spanish international and the goals will come.
"I believe fully in every striker we've got at the club - Adebayor, (Jermain) Defoe, Harry Kane even.
"It just takes time. The goals are going to come, most definitely.
"It's just about being patient and if we keep clean sheets, we can't get beaten, so the worst it's going to be is a draw."
At the opposite end off the field, Spurs appear to be having no problems, their clean sheet at Goodison Park being their seventh of the league campaign.
The failure to score against Everton did cost Spurs the chance to climb to second but Walker believes all is in good shape.
The 23-year-old England international said: "It's fantastic, obviously, to get a point from Everton.
"It's a very good result, it's a hostile atmosphere. We'll take a point.
"On our first-half performance we should have scored. It wasn't meant to be but we have kept another clean sheet, that's seven in the last 10 games. It's perfect for us.
"Defensive-wise - I'm a defender - the clean sheets we have been keeping as a back five, including the goalkeeper, have been fantastic.
"We just need to keep grinding results out. I'm sure the results will come."
Walker is not overly concerned about missing out on second spot so early in the campaign, but admits the team are now where they should be at the very least.
He said: "With the players we have got here it should be the minimum requirement, top four.
"We need to get that top four spot this year. Fingers crossed we do it."