Poor performing SQL statements

 -- Are there any SQL Server statements in the cache that could use tuning?
 -- The following query will identify any poor performing SQL statements. You can alter the "order by" clause depending on what you are most concerned with (IO vs. CPU vs. Elapsed Time).

SELECT top 10 text as "SQL Statement",
   last_execution_time as "Last Execution Time",
   (total_logical_reads+total_physical_reads+total_logical_writes)/execution_count as [Average IO],
   (total_worker_time/execution_count)/1000000.0 as [Average CPU Time (sec)],
   (total_elapsed_time/execution_count)/1000000.0 as [Average Elapsed Time (sec)],
   execution_count as "Execution Count",
   qp.query_plan as "Query Plan"
FROM sys.dm_exec_query_stats qs
CROSS APPLY sys.dm_exec_sql_text(qs.plan_handle) st
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle) qp
order by total_elapsed_time/execution_count desc