That search is likely to have intensified after the 1-0 loss at Wigan, where the Blues recorded their second successive blank in front of goal.
The defeat at the DW Stadium also saw central striker John Marquis replaced for the sixth game in a row as his frustrating start to the season continued,
But before Cowley can move to add to his attacking options – most likely with a loan – there’s every chance that a departure could be needed for him to act.
Ellis Harrison continues to attract interest, with Bristol Rovers and Cheltenham the latest teams linked with the former Ipswich man.
And if a move for the 27-year-old materialises over the next few days then there’s every chances the Pompey head coach will delve into the Championship to find a replacement.
But who is available from that level?
We’ll, we’ve been checking out the second tier for answers and have come up with six front men whose futures remain very much up in the air.
Here’s what we came up with...

5. Kyle Joseph (Swansea)
Swansea saw off a host of other clubs when they brought in 19-year-old Joseph from Wigan for £500,000 plus add-ons in June. The scot has made just two appearances for the Swans, though - both in the League Cup. A loan move has been sanctioned by new boss Russell Martin and that has League One clubs on alert. Picture: Jan Kruger/Getty Images Photo: Jan Kruger

6. Kenneth Zohore (West Brom)
The former Denmark under-21 international is well down the pecking order at the Hawthorns, and with new boss Valerien Ismael adding to his forward options with the signing of Jordan Hugill, Zohore will be allowed to leave. The 27-year-old spent last season out on loan at Millwall, scoring three goals in 19 Championship appearances. Picture: Stu Forster/Getty Images Photo: Stu Forster

