Ahmedabad, April 22 -- Gujarat Titans' batting coach Matthew Hayden was scathing about their 99-run defeat to Mumbai Indians, blaming a "horror" batting display and poor death bowling for the heavy loss in the IPL. From being 44/3 in 5.5 overs, MI hammered 73 runs in the last four overs to post a challenging 199/5 here on Monday. In reply, GT were bundled out for 100. "I expect our margins to be a lot smaller than 100 (99). That is an unacceptable scorecard for our batting unit," the legendary Australian opener told media in the post-match interaction. "It was just a horrible day for us today. Truth be told, there was nothing good about this day, really, apart from Rabada's performance with the ball. so we've got some work to do, definitely."GT boast a strong batting line-up in Sai Sudharsan (759 runs), Shubman Gill (717), and Jos Buttler (538). They have also added New Zealand's explosive Glenn Phillips in the middle order alongside Shahrukh Khan and Rahul Tewatia. "When you look down at our batting line-up, we've got wonderful players that have to be in a better mindset and better position to take their opportunities. That is our expectations and has been since the conception of this Gujarat Titans franchise... "So you can't be sitting here and being happy about, a 100-run (99) margin game in a 20-over game. I mean, back in my day, 100 runs was almost a winning total in 50-over cricket!"The 54-year-old said GT lost the game in the powerplay. "Well, middle order was undoubtedly exposed today. When they're coming in with six overs, you know that you're in deep trouble. The thing about the power plays is that you can't win it from there, especially in a run chase, but you can definitely lose it, and we lost it in the power play," he said. Shahrukh (35 off 25 balls) and Tewatia (49 off 42) have not fared well this season and Hayden feels the duo along with Phillips (67 off 54 balls) have been struggling because the top order has been below its best. "The relevance behind balls faced when you look at, for example, someone like Glenn Phillips -- his record in T20 cricket is an impressive strike rate and you'll take that all day long in the majority of games," Hayden said. "However, you need an upfront batting effort where you consistently taking the lion's share of the batting. We shouldn't be allowing, Tiwu (Tewatia) or Shahrukh or these guys lots of balls. That's not their role. That's not what they train for."Hayden said GT has an aggressive and adaptable unit but their execution fell apart on the day. "We are a very good thinking batting unit. We're not a conservative batting unit. You don't go out and get 200s as often as we do being conservative. But they're an adaptive batting unit. ...they've got their roles and they play them and today they simply didn't. "So the worry isn't just today about the middle order. It'd be unfair to say that, they were going to go on and score 13 runs an over because by that stage, I felt like as a batting coach, I was on the mast and the boat was sinking." Hayden also pointed to poor execution in the death overs. "I feel like one-dimensional is very unfair on a world-class bowling attack, but I will take on board it was a poorly executed bowling effort this evening."...