The Australian believes that his team have improved since their 80-0 thrashing by Warrington a few weeks back, but acknowledges that there is still plenty of work to be done.
Trinity welcome Wigan to Belle Vue on Thursday night, before travelling to St Helens a week later.
“We stripped it back a lot after Warrington,” Webster told reporters.
“We really went back to basic stuff in defence, stuff you probably learn when you are seven or eight years of age. We need to defend harder for longer.
“We made some small strides against Halifax but we understand we need to make some bigger ones this week.
“You get one or two wins and the whole outlook of life changes. For us an improved performance will give us a lift going to Saints.
“If we can improve each week, we are going to get close to winning some games. We can win this week if we make big enough strides.
“The next month is an important one for us to stay strong and to improve. If we can improve every single week, especially defensively, it won’t be too long before we’re hitting the standards we did in the first two rounds.”