Stiliyan Petrov admits Aston Villa have to be "more clinical" next season if they are to take the next step and secure a Champions League spot.[LNB] Martin O'Neill's side enjoyed another successful campaign in finishing sixth in the Premier League, reaching the Carling Cup final and the FA Cup semi-finals.[LNB]But skipper Petrov knows that one of the key reasons for Villa's failure to finish above Manchester City and Tottenham in the race for a top-four spot was the number of games they drew.[LNB]Villa ended up sharing the spoils in 13 of their 38 league games, including a crucial spell of six at home from January to mid April which proved costly.[LNB]The Bulgaria international said: "It's been a great season for Villa and it's just a pity that such a good season produced no reward.[LNB]"We were close in the Carling Cup and FA Cup while we just missed out on fourth place in the Premier League.[LNB]"I am sure those experiences will give us plenty to think about next season and I'm sure we will benefit from going to Wembley twice and pushing hard in the league.[LNB]"We have produced some superb performances over the last few months but too many potential wins ended up in draws. We intend to be more clinical next season."[LNB]Petrov also feels Villa may benefit from the number of derby matches next season with Birmingham, Wolves and newly-promoted West Brom also in the top flight.[LNB]The midfielder said: "Some people feel that too many derbies aren't necessarily a good thing because teams often cancel each other out in these games.[LNB]"But Villa have done well in derbies since I came here and, even though we had to settle for two draws with Wolves, I am sure our fans would have been happy with the outcome of the two Birmingham games."